Exposition of the Insufficiency of Natural Love
From this point onward, Jesus begins to demonstrate, in a progressive manner, that righteousness based on the external observance of the law does not essentially distinguish the Jews from other peoples. The first element of this demonstration appears in the sphere of natural human relationships. By stating, “If you love those who love you, what reward do you have? Do not even the tax collectors do the same?” and “If you greet only your brothers, what more are you doing than others? Do not even the Gentiles do the same?” (Matthew 5:46–47), Jesus makes clear that behaviors considered morally acceptable—such as loving those who love us and greeting members of one’s own group—do not constitute evidence of superior righteousness. Such actions belong to the natural order of human reciprocity and are practiced indiscriminately by all, including tax collectors and Gentiles. Thus, what the Jews might regard as evidence of their spiritual superiority is, in reality, common to all humanity.
In summary, by highlighting the most basic sphere of human relationships, Jesus demonstrates that:
Loving those who love you is universal behavior.
Greeting one’s own group is universal behavior.
This does not constitute superior righteousness.
This leads to an implicit, yet inevitable conclusion: if the righteousness of the Jews was grounded in the esteem they held for one another—that is, in practices of reciprocity common to human nature—then it did not exceed the righteousness of the scribes and Pharisees and, furthermore, did not essentially differ from that practiced by tax collectors and Gentiles. Therefore, such righteousness did not meet the requirement of the kingdom of heaven. This constitutes the first decisive blow in Jesus’ argument against reliance on human righteousness based on the external observance of the law, for it reveals that what they trusted as a sign of spiritual distinction was, in reality, indistinguishable from the behavior common to all humanity.
Exposition of the Insufficiency of Formal Religiosity
Jesus then deepens his argument by addressing formal religiosity, specifically in the context of prayer. He declares:
“And when you pray, do not use vain repetitions as the Gentiles do, for they think that they will be heard for their many words.” (Matthew 6:7)
In doing so, he demonstrates that even religious practice, when reduced to external formality, does not in itself establish a true relationship with God. The Gentiles also pray, also seek the divine, and also express devotion. Thus, external religiosity, when isolated from true submission to God, does not constitute evidence of the righteousness that belongs to the kingdom. The contrast reveals that the problem does not lie in the absence of religious practice, but in the false confidence placed in the practice itself as the foundation of one’s relationship with God.
In summary, Jesus now advances into the religious sphere by demonstrating that:
External religious practice is also common among the Gentiles.
Religious repetition does not establish a relationship with God.
The logical progression shows that not only natural moral behavior, but also formal religiosity is insufficient. Neither natural morality nor formal religiosity derived from the law produces the righteousness required by God.
Exposition of the Insufficiency of Existential Security Based on Material Provision
The argument reaches an even deeper level when Jesus addresses the issue of existential security based on material provisions. By stating that “the Gentiles seek after all these things” (Matthew 6:32), referring to the material necessities of life, he exposes the human tendency to seek security in what is visible and tangible. This pursuit is not exclusive to the Gentiles, but reflects the natural condition of humanity when living independently of trust in God. The contrast reveals that the fundamental difference between those who belong to the kingdom and those who do not lies not merely in external behavior, but in the foundation of their trust. Trust in God concerns not only matters of daily subsistence, but also the future realities grounded in divine providence. While the Gentiles live in pursuit of preserving their present existence, the children of the kingdom are called to trust in the One who knows their needs before they even express them.
This stage of the argument further deepens the demonstration by showing that:
The Gentiles live seeking security in material things.
The pursuit of material security characterizes those who do not know God as Father.
The difference between those who belong to the kingdom and those who do not lies not in moral behavior or external religiosity, but in the foundation of their relationship with God as Father.
The Climactic Point of the Structure: The Requirement of Perfection
It is within this context that the full meaning of the declaration becomes clear:
“Be perfect, therefore, as your heavenly Father is perfect.” (Matthew 5:48)
This perfection does not refer to a moral perfection attained through human effort, but to the perfection that characterizes God Himself, especially as described in the immediately preceding verse:
“For He makes His sun rise on the evil and on the good, and sends rain on the just and on the unjust.” (Matthew 5:45)
Here, Jesus reveals the nature of divine perfection: God does not act on the basis of human reciprocity, nor does He condition His benevolence on the merit of those who receive it. His action is providential, benevolent, and independent of the moral condition of human beings. The sun and the rain—elements essential for the preservation of life—are granted indiscriminately to both the righteous and the unrighteous. This demonstrates that God’s perfection resides in His sovereign and benevolent initiative, not as a response to human behavior, but as an expression of His own nature.
This revelation is decisive, for it dismantles the assumption that the observance of the law, in itself, confers superior righteousness. If the hearers desired to be recognized as children of God, they needed to understand that the nature of this sonship is not grounded in mere moral reciprocity, but in conformity to the generous logic of divine action. For this reason, Jesus commands them to love their enemies, bless those who curse them, and pray for those who persecute them, because this is how God acts: He grants sun and rain to both those who honor Him and those who reject Him. The model presented is not human righteousness based on retribution, but divine perfection grounded in God’s sovereign initiative:
“You have heard that it was said, ‘You shall love your neighbor and hate your enemy.’ But I say to you, love your enemies, bless those who curse you, do good to those who hate you, and pray for those who mistreat you and persecute you, so that you may be sons of your Father who is in heaven.” (Matthew 5:43–44)
In this way, the assumption that human beings can attain the righteousness required by God through their own actions based on the law is decisively rejected. The perfection of divine righteousness is not a condition that human beings can reproduce through the observance of commandments, but a reality that proceeds exclusively from God. Thus, in requiring perfection—“Be perfect, therefore, as your heavenly Father is perfect” (Matthew 5:48; cf. Deuteronomy 18:13)—Jesus does not establish a standard attainable by autonomous human capacity, but reveals the nature of the righteousness that proceeds from God and is necessary for entering the kingdom of heaven.
The contrast between human behavior, grounded in reciprocity and the external observance of the law, and the sovereign and generous action of God demonstrates that the righteousness of the kingdom is not a product of human nature, but the result of divine initiative. The progression of the discourse is deliberate and pedagogically structured. Jesus leads His hearers from what they considered sufficient—righteousness based on the law—to the recognition of its insufficiency, preparing them to understand that the righteousness God requires cannot be produced by human effort, but must proceed from God Himself.
The logic is as follows:
Tax collectors do this.
Gentiles do this.
Therefore, this is not the righteousness of the kingdom.
Inevitable conclusion: the righteousness required cannot be produced by human beings. This prepares the foundation for the central call of the gospel: not to trust in one’s own righteousness, but to submit to the kingdom of God.
Thus, the entire argumentative progression of the Sermon on the Mount leads to an unavoidable conclusion: righteousness based on external observance, formal religiosity, or existential security grounded in material provision is insufficient to establish a right relationship with God. By comparing the Jews with tax collectors and Gentiles, Jesus demonstrates that, in their natural condition, there is no essential distinction between them. All are equally incapable of producing, according to the law, the righteousness required. The purpose of this discourse is not merely to correct behavior, but to produce a fundamental change of understanding (metanoia), leading human beings to recognize their incapacity and their need to submit to the authority of the One in whom the kingdom of God itself is manifested.
The Argumentative Structure of the Sermon on the Mount and the Parallel with the Life of Abraham
This same principle had already been established in redemptive history through Abraham, whose righteousness did not proceed from works or from the law, but from faith in the word of God.
In light of the argumentative structure of the Sermon on the Mount and the progressive revelation of divine righteousness, it becomes possible to identify the pedagogical principles that lead the hearer to recognize the impossibility of human righteousness and the necessity of a righteousness that proceeds exclusively from God. When this progression is considered in light of the patriarch Abraham—the paradigm of faith and of righteousness that comes from God—it becomes even clearer that Christ’s objective is not to perfect man by making the law more demanding, but to lead him into the same relationship of faith and submission that characterized Abraham.
Observe that Abraham did not relate to God on the basis of reciprocal righteousness—loving those who love him, greeting those who belong to his own group, or giving good gifts to his children—for these practices do not constitute superior righteousness, since they belong to the common order of human nature. This kind of righteousness is horizontal, grounded in reciprocity, and does not establish a true relationship with God.
By contrast, Abraham related to God on the basis of faith and submission to His word. He believed when there was no visible promise and no tangible guarantee, and his righteousness did not proceed from a proportional human response to a received benefit, but from trust in the word of the One who called him:
“Abraham believed God, and it was credited to him as righteousness.” (Genesis 15:6)
Abraham did not rely on religious practices, inheritance, or formal observances to establish his relationship with God. His righteousness was established when he responded to the divine call by abandoning his land, his family, and his natural security:
“Now the LORD said to Abram: Go out from your land, from your kindred, and from your father’s house, to the land that I will show you.” (Genesis 12:1)
His righteousness did not proceed from works according to a law, but from submission to the word (promise) of the One who called him.
Abraham is the paradigmatic example of the reality of faith. The promise made to him was not established on the basis of his works, but on the faithfulness of God:
“Not because of your righteousness or the uprightness of your heart are you going in to possess their land…” (cf. Deuteronomy 9:5)
The promise preceded the law, and Abraham’s righteousness was established before the existence of any legal system. This demonstrates that the relationship with God has never been grounded in the human capacity to fulfill commandments, but in the divine initiative to establish a covenant with man. For this reason, perfection is not attained through works of the law, but through abiding in the presence of God and submitting to His word, as God Himself declared to Abraham:
“Walk before Me and be perfect.” (Genesis 17:1)
Perfection, therefore, does not consist in moral self-sufficiency, but in dependence upon and submission to the One who is perfect.
It is precisely this same principle that Jesus reveals in the Sermon on the Mount. By leading His hearers from the recognition of the insufficiency of righteousness based on human reciprocity—common to tax collectors and Gentiles—through the insufficiency of formal religiosity grounded in the external observance of the law, and ultimately to the revelation of God’s own perfection, Jesus leads them to the very foundation upon which Abraham’s righteousness was established: submission to the word of God.
Abraham was not justified by loving those who loved him, nor by practicing formal religiosity, nor by fulfilling a law, since the law had not yet been given. He was justified because he believed in the One who called him and submitted to His word. While the multitude believed they possessed a right to the kingdom of heaven on the basis of their national identity and their righteousness grounded in the law—even to the point of hating their enemies as an expression of religious distinction—Abraham demonstrated his faith through absolute obedience, offering his only son as a burnt offering in response to God’s command (Genesis 22:1–18). His righteousness did not consist in external practices, but in full submission to the authority of the One who called him.
Obedience to God is not evidenced by practices that even tax collectors and sinners are willing to perform, but by submission to His sovereign determination. In Abraham’s case, this obedience included breaking familial ties, relinquishing his land and inheritance, and ultimately being willing to offer his own son in obedience to the divine command, as one who renounces what is most precious to him (cf. Genesis 12:1; 22:1–18; Luke 14:26).
It is in this obedience that a righteousness superior to that of the scribes and Pharisees is manifested. For this reason, Jesus intensifies the demands of the law in the Sermon on the Mount, not to establish a new system of justification by works, but to expose the insufficiency of human righteousness and to reveal the contrast between righteousness based on human reciprocity—common to tax collectors and Gentiles—and the righteousness that proceeds from submission to God. By commanding them to love their enemies and to be perfect as the heavenly Father is perfect, Jesus reveals a standard that cannot be attained by human capacity independent of divine action, thereby pointing to the nature of righteousness that proceeds exclusively from God.
Thus, Abraham becomes the paradigm of the proper relationship with God, not as an example of human merit, but as a testimony that righteousness is established in those who submit to the divine word. His life demonstrates that righteousness is not the product of the law, nor of human nature, but of faith in the One who calls and of obedience to His voice.
In this way, the Sermon on the Mount does not present a path by which man may attain righteousness through superior works, but reveals the impossibility of human righteousness as the foundation of the relationship with God. Its purpose is to lead man to the recognition of the need for a righteousness that proceeds from God Himself and to prepare the way for the recognition of the One in whom that righteousness is fully manifested. Christ did not come to perfect human righteousness, but to reveal Himself as the foundation of the righteousness that God grants to those who, like Abraham, believe His word and submit to His lordship.
