God declared in the first commandment that Lord is the only God and he alone must be worshiped. The first commandment focused on the object of people’s worship. The second commandment focuses on how people are to worship the Lord.
You shall not make for yourself a carved image, or any likeness of anything that is in heaven above, or that is in the earth beneath, or that is in the water under the earth. You shall not bow down to them or serve them, for I the Lord your God am a jealous God, visiting the iniquity of the fathers on the children to the third and the fourth generation of those who hate me, but showing steadfast love to thousands of those who love me and keep my commandments. (Exodus 20:4–6 ESV)
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