Genesis 18:3

We have an account in this chapter of another interview between God and Abraham, probably within a few days after the former, as the reward of his cheerful obedience to the law of circumcision. Here is, I. The kind visit which God made him, and the kind entertainment which he gave to that visit (Gen 18:1-8). II. The matters discoursed of between them. 1. The purposes of God's love concerning Sarah (Gen 18:9-15). 2. The purposes of God's wrath concerning Sodom. (1.) The discovery God made to Abraham of his design to destroy Sodom (Gen 18:16-22). (2.) The intercession Abraham made for Sodom (Gen 18:23, etc.).

18:3 My lord: The Hebrew text uses ’adonay (“Lord”), the word that is usually reserved for God. In Hebrew tradition, it was spoken in places where the holy name Yahweh (the Lord) was in the text. Perhaps the text uses ’adonay rather than the more common ’adoni to show that this was the angel of the Lord—i.e., the Lord himself (see study note on 16:7). We don’t know whether Abraham knew his visitors’ identity at the outset, but by the story’s end Abraham certainly knew he had been talking with God.