Genesis 18:1-16
And the LORD appeared to him in the plains of Mamre: and he sat in the tent door in the heat of the day;
Nave's Topical Index—AKJV

Genesis 22:11,15
And the angel of the LORD called to him out of heaven, and said, Abraham, Abraham: and he said, Here am I.
Nave's Topical Index—AKJV

Genesis 24:7
The LORD God of heaven, which took me from my father's house, and from the land of my kindred, and which spoke to me, and that swore to me, saying, To your seed will I give this land; he shall send his angel before you, and you shall take a wife to my son from there.
Nave's Topical Index—AKJV