Genesis 12:7

The Lord appeared - In what way this appearance was made we know not; it was probably by the great angel of the covenant, Jesus the Christ. The appearance, whatsoever it was, perfectly satisfied Abram, and proved itself to be supernatural and Divine. It is worthy of remark that Abram is the first man to whom God is said to have shown himself or appeared:

1. In Ur of the Chaldees, Acts 7:2 ; and

2. At the oak of Moreh, as in this verse. As מורה Moreh signifies a teacher, probably this was called the oak of Moreh or the teacher, because God manifested himself here, and instructed Abram concerning the future possession of that land by his posterity, and the dispensation of the mercy of God to all the families of the earth through the promised Messiah. See on Genesis 15:7 ; (note).