God doesn’t expect morality in the absence of relationship. The first line of the Ten Commandments (Ex. 20) is not, “You shall have no other gods before me,” but, “I am the Lord your God, who brought you out of Egypt, out of the land of slavery.” God defines the relationship first, then describes a life lived in its context.

via Relationship That Leads to Life | Christianity Today | A Magazine of Evangelical Conviction.

Westminster Larger Catechism Q. 101. What is the preface to the Ten Commandments?
A. The preface to the Ten Commandments is contained in these words, I am the LORD thy God, which have brought thee out of the land of Egypt, out of the house of bondage. Wherein God manifesteth his sovereignty, as being JEHOVAH, the eternal, immutable, and almighty God; having his being in and of himself, and giving being to all his words and works: and that he is a God in covenant, as with Israel of old, so with all his people; who, as he brought them out of their bondage in Egypt, so he delivereth us from our spiritual thraldom; and that therefore we are bound to take him for our God alone, and to keep all his commandments.

Westminster Shorter Catechism Q. 44. What doth the preface to the ten commandments teach us?
A. The preface to the ten commandments teacheth us that because God is the Lord, and our God, and redeemer, therefore we are bound to keep all his commandments.