The spiritual law of God, including the Ten Commandments, is an eternal and inexorable force, always in effect since creation. These commandments are not merely suggestions or rituals but the very code of conduct of our God, binding on all humanity before, during, and after the time of Moses and Jesus Christ. When we keep them, God blesses us; when we do not, we incur their penalty. A commandment is a specific, divine instruction from God that we are to obey forever, establishing original law without precedents. Law defines sin, and since sin has existed from the beginning with Adam, God must have given His law, including the Ten Commandments, as the basic law of His Kingdom. Breaking any of these commandments was considered sin even before Moses' time, as evidenced by the actions of individuals in early history. Abraham, the father of the faithful, kept the commandments, as did David, a man after God's own heart, who was deeply concerned with obeying them. Jesus Christ Himself kept the Ten Commandments and taught others to do the same, emphasizing that keeping them is essential to entering eternal life. The apostles, including Paul, frequently mentioned the commandments in their writings, summarizing the last six as a way to love our neighbor and affirming that violating any, including the first four that show love toward God, is sin. A sign of God's true church is the keeping of the Ten Commandments, and any church that does not teach and keep them is not of God. Love does not nullify these commandments; rather, by keeping them, the love of God is perfected in us. Even after the Millennium, when New Jerusalem is established, no lawbreaker will be allowed in the city, proving that obedience to God's law, reflecting His holy conduct, will remain the standard for all eternity.

Psalm 119 and Psalm 136, both in Book Five, are presented as showing God's law as a practical, daily guide for the pilgrimage out of spiritual Egypt toward His Kingdom. Psalm 119 praises the law as a way of life rather than legal minutiae or stern warnings, and it is called a New Testament psalm because it focuses on the heart. The law cleanses, brings joy, counsels, gives hope, peace, and liberty, and makes sense of affliction (verses 9, 11, 71, 165). Its eight or more synonyms for God's instruction, such as derek, torah, edah, piqqudim, chuqqim, and dabar, add depth and variety. Almost every verse is a prayer addressed to God, and beneath the praise runs a veiled story, possibly of Jeremiah, with four characters: God, the psalmist, a faithful remnant, and wicked enemies, including princes and kings, who have imprisoned him unjustly. Going stanza by stanza, he moves from weakness, loneliness, and persecution to trust, repentance, and growth in character, ending with a plea to be sought like a lost sheep. The story's rescue is not recorded, but Jeremiah's later release is cited. The psalm stands for the faithful Christian enduring trials, relying on God's Word. The study closes with Psalm 136, recalling God's mercy in bringing Israel out of Egypt with a strong hand and through the wilderness.