2 And lifting up his eyes, he saw three men before him; and seeing them, he went quickly to them from the door of the tent, and went down on his face to the earth; 3 And said, My Lord, if now I have grace in your eyes, do not go away from your servant: 4 Let me get water for washing your feet, and take your rest under the tree: 5 And let me get a bit of bread to keep up your strength, and after that you may go on your way: for this is why you have come to your servant. And they said, Let it be so. 6 Then Abraham went quickly into the tent, and said to Sarah, Get three measures of meal straight away and make cakes.
Matthew Henry's Commentary on Genesis 18:2-6
Commentary on Genesis 18:1-8
(Read Genesis 18:1-8)
Abraham was waiting to entertain any weary traveller, for inns were not to be met with as among us. While Abraham was thus sitting, he saw three men coming. These were three heavenly beings in human bodies. Some think they were all created angels; others, that one of them was the Son of God, the Angel of the covenant. Washing the feet is customary in those hot climates, where only sandals are worn. We should not be forgetful to entertain strangers, for thereby some have entertained angels unawares, Revelation 3:20.