And the LORD appeared unto him by the oaks of Mamre: and he sat in the tent door in the heat of the day;
All Commentaries on Genesis 18:1 Go To Genesis 18
Eusebius of Caesarea
AD 339
Thus the Lord God is said to have appeared as a common man to Abraham while he was seated by the oak of Mamre. But [Abraham] immediately fell down, although he saw a man with his eyes, and worshiped him as God, besought him as Lord and confessed that he was not ignorant as to who he was, using these very words, “O Lord, judge of all the earth, will you not judge righteously?” For if it should be unreasonable to suppose that the unbegotten and immutable substance of God the Almighty was changed into the form of man and, in turn, that the eyes of the beholders were deceived by the phantasm of something created and that such things were falsely invented by Scripture, who else could be proclaimed God and the Lord who judges all the earth and judges righteously, appearing in the shape of a man—if it be not proper to call him the first cause of all things—than his preexistent Word alone? Ecclesiastical History.
