Deuteronomy 6:6 Commentary

Deuteronomy 6:6 serves as a foundational verse within the Shema, one of the most pivotal passages in the Old Testament. Following the command to love the Lord with all one's heart, soul, and might, this verse emphasizes the internalization of God's commandments. It transitions from an external proclamation to an internal possession, asserting that these divine words must reside not merely in the mind, but in the deepest core of one's being. This verse sets the stage for the subsequent instructions on diligent teaching and constant remembrance, underscoring that true obedience springs from a heart transformed by God's truth. For the Reformed believer, this resonates deeply with the concept of regeneration and the law written on the heart.

In ancient Israel, oral tradition and memorization were paramount for the transmission of knowledge and values. The giving of the Law through Moses was not just a legal code, but a covenantal constitution for a people set apart by God. The command to have "these words... in thine heart" speaks against a superficial adherence to rituals and outward observances, which was a constant temptation for Israel. The surrounding cultures often worshiped many gods, and their ethical systems were fluid. Yahweh's commands, however, demanded exclusive devotion and a comprehensive transformation, beginning with the heart. This instruction was critical for maintaining Israel's distinct identity and faithfulness amidst pagan influences, preparing them for establishment in the Promised Land and for being a light to the nations.

The Hebrew word for "heart," לֵב (lev), is far more comprehensive than the English equivalent often implies. It does not refer solely to emotions, but to the center of intellect, will, and moral character. Thus, "in thine heart" signifies much more than mere feeling; it means these words are to be integrated into one's entire thought process, decision-making, and moral compass. The phrase "which I command thee this day" highlights the present and ongoing authority of God's Word, demanding immediate and continuous attention. This is not a suggestion but a divine imperative. For the Reformer, "lev" speaks of total depravity needing total regeneration, where the implanted Word transforms the entire person.

Deuteronomy 6:6 is deeply significant for Old Testament theology, especially concerning the nature of God's law and man's response. It establishes that salvation and obedience are not merely external acts but stem from an internal, regenerate disposition. This verse foreshadows the New Covenant promise of God's law being written on the heart (Jeremiah 31:33, Hebrews 8:10), emphasizing God's transforming work in His people. It reveals that God desires not just compliance, but genuine love and devotion born out of a heart that cherishes His commands. This Reformed understanding highlights sovereign grace, as God effectively works in the hearts of His elect to embrace His truth, making them willing and able to obey.

For Reformed believers today, Deuteronomy 6:6 calls us to internalize God's Word in a profound way. It's not enough to intellectually assent to biblical truths or to perform religious duties outwardly. We must actively meditate on Scripture, allowing it to penetrate our minds, inform our affections, and direct our wills. This means regular, prayerful study of the Bible, committing verses to memory, and seeking to understand how God's truth applies to every area of life. As the Spirit works through the Word, our hearts are progressively sanctified, aligning our desires and actions with God's will. This is vital for spiritual growth, combating sin, and living a life that glorifies our sovereign God.