The Church Fathers on this verse

Deuteronomy 6:13Meaning & Commentary from the Church Fathers

Take heed diligently lest thou forget the Lord, who brought thee out of the land of Egypt, out of the house of bondage. Thou shalt fear the Lord thy God, and shalt serve him only, and thou shalt swear by his name.

Douay-Rheims

אֶת־יְהוָ֧ה אֱלֹהֶ֛יךָ תִּירָ֖א וְאֹת֣וֹ תַעֲבֹ֑ד וּבִשְׁמ֖וֹ תִּשָּׁבֵֽעַ׃

Hebrew (Masoretic text)

The Church Fathers on this verse

5 Church Fathers comment on this verse · 6 commentaries

Cyrill of Alexandria

5th centuryChurch Father

When the sacred writings refer to the Son as Lord, will you acknowledge Him as such, or will you reject that truth? To claim He is not Lord is to act in opposition to the holy Scriptures and the Spirit that inspired them. However, if you accept Him as Lord, you must confront the inconsistency of your beliefs, for while you honor Him as Lord, you do not recognize Him as of the same essence as God the Father. In doing so, you end up serving created beings rather than the true God. That which exists in a different essence from the Being of God cannot be divine by nature. This is affirmed in the sacred text, which states, ‘The Lord our God, the Lord is one’ (Deuteronomy 6:4), indicating that there is one nature in the Godhead. Moreover, to emphasize that He alone is worthy of worship, consider this passage: ‘You shall worship the Lord your God, and Him only shall you serve’ (Matthew 4:10).

Once more it is stated, 'Thou shalt worship the Lord thy God, and Him only shalt thou serve' (Matt. 4:10; cf. Deut. 6:13). Given that there is one God the Father, one Lord the Son, and one Holy Spirit emanating from Them, we must not deny the one God of rightful authority, nor the Lord of His divine essence. For undeniably, lordship naturally follows from deity, and true glory is a consequence of authentic lordship.

Augustine of Hippo

5th centuryChurch Father

Those who hold faith in the authority of sacred Scriptures should first observe the declaration, “Thou shalt worship the Lord thy God, and Him only shalt thou serve” (cf. Matt. 4:10; Luke 4:8). The term used in Greek is latria, which signifies service rendered to God alone rather than servitude to earthly masters. Therefore, the practice of idolatry is justly condemned, as it involves serving created images in the manner that only the true God deserves to be served. The command does not merely state, “Thou shalt worship the Lord thy God alone,” but emphasizes, “Him alone shalt thou serve.” The emphasis on serving refers to the divine service defined as latria, encompassing the temple, sacrifice, priesthood, and related practices.

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What, then, of God’s justice? Does it not resonate when the Lord asserts that one cannot serve two masters (cf. Matt. 6:24), while the apostle admonishes those who honor the creature above the Creator (cf. Rom. 1:25)? Moreover, in the Old Testament, it has been expressed long before, “Thou shalt worship the Lord thy God, and Him only shalt thou serve” (cf. Matt. 4:10; Luke 4:8). Additionally, one might wonder what more needs to be conveyed when the entirety of existence is imbued with these principles. Justice, therefore, provides a vital guideline for the devoted individual: to serve with love the God they cherish, who embodies the supreme good, wisdom, and peace. All else should be perceived as either subordinate to oneself or as something to be brought under submission. This principle of living is affirmed by both the Old and New Testaments.

Theodoret of Cyrus

5th centuryChurch Father

What is the reason behind the command to invoke the name of God (Deuteronomy 6:13)? It is to ensure that the Israelites do not pledge allegiance to false deities. As the prophet declares, ‘If thou take away the names of Baalim from thy mouth, and swear, the Lord liveth in truth’ (Jeremiah 4:1-2). Furthermore, Moses emphasizes: ‘Thou shalt fear the Lord thy God, and Him only shalt thou serve, and to Him shalt thou cleave thyself, and by His name shalt thou kneel’ (Deuteronomy 6:13-14).

Theophan the Recluse

19th centuryChurch Father

You shall revere the Lord your God: see Deuteronomy 6:15. To Him alone shall you serve and hold fast: see Deuteronomy 6:5. Fear and trembling do not constitute the essence of the covenant or the laws given at Sinai. They cannot be a part of the covenant, as covenants are established to eliminate all fear. Here, fear serves merely as the external representation of the covenant, an outward reflection of God's presence and His laws. This necessity arose from a specific circumstance—the age of the Israelites, who were inclined to seek indulgences and anticipate leniency. Therefore, the Lord kept the Israelites in a state of awe of His name, so that they might refrain from sin (Ex. 20:20); yet this was done indirectly, as an outward measure.

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The fearsome judgments upon the Egyptians, the firm resolve against the Amalekites, and particularly the dread at Sinai and the blood of the covenant all pointed to this. The initial events instilled in the Israelites a sense of frailty under the might of the Almighty, causing them to tremble at the thought of God as the avenger of those who defy His will. The latter two experiences revealed that the fear of death looms over the sinner at the moment of transgression and the imminent danger of death thereafter. God revealed Himself as the supreme, inaccessible Sovereign of creation, gracious to those who obey while fierce against His adversaries, assuring them of His watchfulness but maintaining a careful distance. Each lawbreaker must carry the conviction that residing under the roof of God is beneficial, yet they must also fear the consequences of transgressing His will. Thus, the state of the lawless captures the essence of love, fear, adoption, and servitude. An Israelite, living within this faith and in relation to God, experienced a blend of jubilant, serene, uplifting sentiments along with distressing, debilitating, and constraining emotions. He fluctuated between these feelings, influenced by the condition of his heart and conscience, balancing the one against the other, so that at all times he was a reverent honoror of the One who performs wonders, maintains truth, and continually manifests His mercy, even through His wrath (Ex. 20:5; Ex. 34:6-7; Num. 14:18; Deut. 7:9-10), Jehovah his God. His heart never allowed love to completely overshadow fear, nor fear to stifle love; rather, both emotions had a place in his heart throughout his life. Initially, it is likely that fear prevailed over love, but ultimately love triumphed over fear, as demonstrated in Moses' example, which we should reflect upon regarding the soul’s feelings. It was unthinkable not to fear God, whose presence inspired such dread; however, as God displayed mercy and favor, and as an individual experienced submission to His will, this fear diminished, thereby granting the heart and conscience the right and courage to approach God with trust and filial boldness.

And by His name you shall take an oath. Oaths typically refer to acts of devotion in which we affirm, deny, or promise something, invoking God as the witness of truth and the punisher of unrighteousness. The origin of oaths arises from our doubts and distrust regarding the righteousness and integrity of others. This mistrust is often justified, for 'every man is a liar' (Psalm 115:2). Invoking oaths does not offend God; rather, it acknowledges His sovereignty even more profoundly. Consequently, God not only permits oaths but also instructs that they may resolve doubts and disputes (Exodus 22:10-11). His law prescribes that individuals should swear only in His name because the awareness of God's omniscience and stringent justice serves to reassure the one invoking the oath and deter them from deceiving those who hear it. Jesus Christ does not prohibit swearing by God's name; rather, He teaches believers to live in such a holy and upright manner that they need not swear at all, as their word alone should suffice—'yes' or 'no' (Matthew 5:33-37). The name of such a high Witness should be invoked only in the gravest matters and when an oath is the sole means of affirming the truth. Moreover, we should only affirm or deny in God’s name what we thoroughly understand, and promise only what we are determined, capable, and ready to fulfill, lest we violate God's command, 'You shall not take the name of the Lord your God in vain' (Deuteronomy 5:11; Exodus 20:7). Above all, we must guard against the misuse and violation of oaths; for whoever calls upon the God of truth as a witness to a lie makes themselves unworthy of trust and exposes themselves to the full measure of God's justice, insulting His majesty and undermining the peace and well-being of society, which is upheld by the respect for vows. In our Orthodox Church, those taking significant oaths often raise their hand to heaven, symbolizing their call to witness the One who dwells above, and kiss the Cross and Gospel as a pledge that they, as genuine children of the Church, regard the saving sufferings of Jesus Christ as the foundation of their oath's fidelity. Furthermore, should they prove disloyal or breach their oath, they bring upon themselves the weight of God's justice and alienation from the salvation secured through the sufferings of the Son of God on the Cross and proclaimed in the Holy Gospel.

Vissarion (Nechaev)

19th centuryCommentator

The term "fear" in this context refers to a profound sense of reverence for the Lord. This feeling arises not primarily from a dread of punishment, but from an awareness of God's holiness and majesty, as well as His immense love for us. As such, this reverence does not end in despair but rather assumes a foundation of love for Him. You shall serve Him alone, primarily honoring the Lord through acts of Divine worship. Furthermore, your devotion to Him signifies steadfast loyalty. When you kneel in His name, you affirm the truth of your words and strengthen your resolve to fulfill your commitments; this reflects the essence of external worship to God. In swearing an oath, there is a belief in the Lord's all-knowing nature, His holiness, and His justice, which punishes false oaths. Therefore, such declarations must be made in the presence of the true God alone. Anyone who invokes other deities in an oath betrays the one true God, and the people of Israel should regard such betrayal with utmost seriousness.

Cross references

Passages read together with this verse.