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
Augustine of Hippo
AD 430
God appeared again to Abraham at the oak of Mamre in three men, who it is not to be doubted were angels, although some think that one of them was Christ and assert that he was visible before he put on flesh. Now it belongs to the divine power and invisible, incorporeal and incommunicable nature, without changing itself at all, to appear even to mortals, not by what it is but by what is subject to it. And what is not subject to it? Yet if they try to establish that one of these three was Christ by the fact that although he saw three, he addressed the Lord in the singular, as it is written, “He lifted up his eyes and looked, and behold, three men stood in front of him. When he saw them, he ran from the tent door to meet them, and bowed himself to the earth and said, ‘My lord, if I have found favor in your sight.’ ” Why do they not refer also to this, that when two of them came to destroy the Sodomites, while Abraham still spoke to one, calling him Lord and interceding that he would not destroy the righteous along with the wicked in Sodom, Lot received these two in such a way that he too in his conversation with them addressed the Lord in the singular? For after saying to them in the plural, “My lords, turn aside, I pray you, to your servant’s house,” yet it is afterward said, “So [the angels] seized him and his hand, [because] the Lord [was] merciful to him, and they brought him forth and set him outside the city. And when they had brought them forth, they said, ‘Flee for your life; do not look back or stop anywhere in the valley; flee to the hills, lest you be consumed.’ And Lot said to them, ‘Oh, no, my lords; behold, your servant has found favor in your sight ….’ ” And then after these words the Lord also answered him in the singular, although he was in two angels, saying, “Behold, I grant you this favor ….” This makes it much more credible that Abraham in the three men and Lot in the two recognized the Lord, addressing him in the singular number, even when they were addressing men; for they received them as they did for no other reason than that they might minister human nourishment to them as men who needed it. Yet there was about them something so excellent that those who showed them hospitality as men could not doubt that God was in them as he was wont to be in the prophets and therefore sometimes addressed them in the plural, and sometimes God in them in the singular. But that they were angels the Scripture testifies, not only in this book of Genesis, in which these transactions are related, but also in the epistle to the Hebrews, where in praising hospitality it is said, “For thereby some have entertained angels unawares.”
