The Church Fathers on this verse

Psalm 37 (36):31Meaning & Commentary from the Church Fathers

The law of his God is in his heart, and his steps shall not be supplanted.

Douay-Rheims · Hebrew numbering, Septuagint numbering in brackets.

תּוֹרַ֣ת אֱלֹהָ֣יו בְּלִבּ֑וֹ לֹ֖א תִמְעַ֣ד אֲשֻׁרָיו׃

Hebrew (Masoretic text)

The Church Fathers on this verse

8 Church Fathers comment on this verse · 9 commentaries

Augustine of Hippo

5th centuryChurch Father

The Divine Word residing in your heart frees you from snares; the Divine Word residing in your heart rescues you from the path of deception; the Divine Word residing in your heart brings you salvation from trials. The One whose Word remains with you is always present.

To prevent any assumption that his words do not reflect his true feelings and to ensure he is not numbered among those described as, “This people honours Me with their lips, but their heart is far from Me” (Isaiah 29:13), consider the significance. What benefit is there for him? His steps remain steady. The word of God embedded in the heart provides escape from snares, protects from paths of wickedness, and keeps him from falling. He is supported by the One whose words remain with him. What harm can befall a person safeguarded by God? Just as a watchman is positioned in a vineyard for protection against thieves, it is possible for even that watchman to become weary and allow invaders to come forth. However, the Guardian of Israel never rests nor slumbers.

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With the law of God residing in his heart, his steps will remain firm. Thus, he can live without fear, even in the midst of the unrighteous; he is free from trepidation, even when surrounded by those who do evil. For what harm can the wicked inflict upon the just? Behold what transpires next.

Athanasius the Great

4th centuryChurch Father

The same truth is conveyed in various forms to ensure it is firmly etched in our minds through continual contemplation. It is stated that the Lord will not forsake the upright when the ungodly conspire against them, nor will He turn away when they attempt such acts, instead protecting the just from harm. Abraham witnessed this divine oversight when Sarah was taken from him on two occasions, just as Isaac encountered it when he faced similar peril. Jacob experienced this as well when jealousy arose from his brother and father-in-law, and Joseph saw it during his time of animosity and false accusations. Yet, must we enumerate every instance? The diligent seeker can easily gather numerous examples from the Old Testament, and further illustrations abound in the New Testament. He will render judgment upon him subsequently, during his trial.

Ambrose of Milan

4th centuryChurch Father

We have thus far explored the concept of righteousness, allowing Scripture to deepen our understanding: The law of his God is in his heart, and his feet shall not falter (Psalm 36:31). The righteous individual carries God's law within them, not as a written code, but as an innate guide; this law is not intended for the righteous, but rather for the unruly (1 Tim. 1:9). The natural law existed before the written law, which served as a concession to the hardness of heart among the Jews. This law resides in the heart, not merely on the lips as was the case for the Jews, since with the heart one believes unto righteousness (Rom. 10:10). Every believer expresses their faith, yet not everyone who speaks truly believes.

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As it is written, This people honor Me with their lips, but their heart is far from Me (Isaiah 29:13). When the Gentiles perform righteous acts, they are guided by their own sense of law (Rom. 2:14), understanding what to pursue and what to shun; this understanding is even more pronounced in the faithful and righteous individual who reflects the image and likeness of God. Such a person discerns spiritual truth and moral beauty. In his work ‘On Duties,’ St. Ambrose elaborates on the principles of decorum and virtue, highlighting the ability to harness the essence of wisdom in accordance with divine law, ensuring that their steps remain steady, unlike Esau, who was led astray by his indulgence (Gen. 25:29-34). Consequently, he fell, setting his course toward destruction.

Theodoret of Cyrus

5th centuryChurch Father

The Prophet emphasizes that both our speech and thoughts should be filled with the words of God, which we must study continuously. By doing so, the one who loves righteousness, aware of the path he should follow, stands firm and resolute against those who attempt to undermine him. David expressed this in the first Psalm, stating, "But in the law of the Lord is his will, and in His law he shall learn day and night" (Psalm 1:2), and so forth.

Euthymios Zigabenos

11th centuryCommentator

The Divine law, as he asserts, remains ingrained in his spirit, encompassing both the inherent, unrecorded moral principle and the scriptures provided by Moses. Consequently, his journey toward God remains unimpeded, whether faced with visible adversaries or unseen ones, for no force can thwart or hinder virtue. Just as ships are expertly navigated by a helmsman and the swiftest horse runs smoothly when guided, so does the soul of the just, having the Divine law as its guide, forge clear paths amidst life's unforeseen challenges and navigate through turbulent waters, for, as it is written, the law serves as a support (Isaiah 8:20).

Arnobius the Younger

5th centuryChurch Father

In the struggle against the adversary, the devil seeks to destroy him, but God will not abandon him to the devil's grasp. Instead, God will condemn the evil one and bring him to righteousness.

Irenaeus (Klementjewsky)

18th centuryCommentator

The Prophet previously noted that God's Providence is consistently attentive, ensuring that the righteous are not led astray by the wicked. He further emphasizes that the righteous, through their own discernment—a gift from God—will strive to steer clear of the deceit and malevolence of those who do wrong. The mouth of the righteous will acquire wisdom, implying that the righteous will speak with insight so as not to be ensnared by their words. Learning wisdom through speech is fundamentally about employing understanding during discussions.

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He reiterates this point and adds that the righteous person's tongue will articulate justice, meaning that the utterances of the righteous will not be thoughtless but will convey what is truthful and equitable, aligning with what is fitting to express; this, in essence, constitutes wise dialogue. He provides the rationale: the law of God resides in his heart. This indicates that the speech of the righteous is infused with the essence of wisdom, for since the righteous carry God's law within them, their reflections on His commandments will help them avoid sinning with their words. As it is stated by Solomon in Proverbs 6:23 and echoed by David in Psalm 18:8, the law of the Lord is a source of illumination for the soul and guidance for the innocent. Therefore, it is not surprising that a just individual who cherishes the law in their heart and meditates on it speaks with wisdom. Consequently, the Prophet concludes that his steps will not falter; that is, since the righteous consistently speak wisely, no one can mislead him or cause him to stumble. A person who trips another by cunning rather than force shows a greater deceit. Thus, the steps of the righteous will remain steadfast, preventing them from falling prey to the deceptions of the wicked.

Psalter with Commentaries (Cave Monastery in Kiew)

19th centuryCommentator

Whatever the Father commanded, Christ the Savior faithfully completed for humanity's redemption, as He declared: ‘Father, I have done the work which You gave Me, that I may do it’ (John 17:4). The footsteps of Christ cannot be halted; these are the saints who follow Him continuously, always accomplishing His Divine will without fail.

Cross references

Passages read together with this verse.