John CalvinVerse 2 2.And, lo, three men stood by him. Before Moses prceeds to his principal subject, he describes to us, the hospitality of the holy man; and he calls the angels men, because, being clothed with human bodies, they appeared to be nothing else than men. And this was done designedly, in order that he, receiving them as men, might give proof of his charity. For angels do not need those services of ours, which are the true evidences of charity. Moreover, hospitality holds the chief place among... read more
Adam Clarke's Commentary on the Bible - Genesis 18:2
Three men stood by him - עליו נצבים nitstsabim alaiv , were standing over against him; for if they had been standing by him, as our translation says, he needed not to have "run from the tent door to meet them." To Abraham these appeared at first as men; but he entertained angels unawares, see Hebrews 13:2 . read more