I am the Lord your God

"I am the LORD thy God" (KJV, also "I am Yahweh your God" NJB, WEB) is the opening phrase of the Ten Commandments, which are widely understood as moral imperatives by ancient legal historians and Jewish and Christian biblical scholars.

The text of the Ten Commandments according to the Book of Exodus begins:

The conventional "the LORD" in English translations renders יהוה in the Hebrew text (transliterated "YHWH"), the proper name of the God of Israel, reconstructed as Yahweh. The translation "God" renders אֱלֹהִים (transliterated "Elohim"), the normal biblical Hebrew word for "god, deity".

The introduction to the Ten Commandments establishes the identity of God by both his personal name and his historical act of delivering Israel from Egypt. The language and pattern reflects that of ancient royal treaties in which a great king identified himself and his previous gracious acts toward a subject king or people.

Establishing his identity through the use of the proper name, Yahweh, and his mighty acts in history distinguishes Yahweh from the gods of Egypt which were judged in the killing of Egypt's firstborn (Exodus 12) and from the gods of Canaan, the gods of the gentile nations, and the gods that are worshipped as idols, starry hosts, or things found in nature, and the gods known by other proper names. So distinguished, Yahweh demands exclusive allegiance from the Israelites. “I am the LORD your God” occurs a number of other times in the Bible also.

By saying, "I am the LORD your God, who brought you out of Egypt, out of the land of slavery", it introduces him by name to establish his authority behind the stipulations that follow. The implicit imperative is to believe that God exists and that his proper name is “Yahweh.” By invoking the exodus from Egypt, it also suggests the archetype of God as the redeemer and intervener in history. This verse also serves as the motive clause for the following imperatives.

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