3 And Abram fell on his face: and God talked with him, saying,
[AD 420] Jerome on Genesis 17:3-14
(Chapter 17—Verse 3 and following) And the Lord spoke to him, saying: Behold, my covenant is with you, and you shall be the father of a multitude of nations, and your name shall no longer be called Abram, but your name shall be Abraham, for I have made you the father of many nations. It should be noted that wherever we read Testament in Greek, in the Hebrew language it is the word covenant or pact, that is, Berith (). The Hebrews say that God, from his name, which is the Tetragrammaton among them, added the letter He to Abraham and Sarah: for he was first called Abram (), which means lofty father, and later he was called Abraham (), which means father of many: for what follows nations is not part of the name, but is understood. It is not surprising, therefore, that when it seems that the letter Α has been added among the Greeks and us: we have called it the Hebrew letter He added; for the language of that tongue is to write with He (ה‎), but to read with A (א‎): just as, on the contrary, the letter A is often pronounced as He.

[AD 735] Bede on Genesis 17:3
Abram fell face down. We read that in the earlier places of sacred history, holy men invoked the Lord, offered him sacrifices of praise, and lived innocently in his sight, but none had fallen face down before the Lord before Abram. However, the more superior gifts he received compared to the previous ones, the greater thanks he gave to the Giver of gifts by humbling himself; and because in falling to the ground he humbly recalled his fragility, he immediately deserved to sublimely recognize the eminence of divine power. For it follows: