We are deep into salvation history before the Lord God gave these basic instructions about obedience and altar building. God-fearing righteous men and women illustrated the meaning of the Ten Commandments and true worship long before these instructions were given. In Exodus, Yahweh makes explicit what was understood from the beginning. In spite of our predisposition to sin, there is an intuitive awareness that God’s law is right and good. Since we are made in God’s image, our souls resonate with commands against idolatry, adultery, thievery, and envy. The apostle Paul insisted in Romans 1 that even pagans understand the right way to live. God’s will on obedience and altar building is bedrock wisdom on righteousness and spirituality.