Catena Aurea on John 1:47–51: Augustine of Hippo

Let us recollect the Old Testament account. Jacob saw in a dream a ladder reaching from earth to heaven; the Lord resting upon it, and the angels ascending and descending upon it. Lastly, Jacob himself understanding what the vision meant, set up a stone, and poured oil upon it. (Gen. 28:12.) When he anointed the stone, did he make an idol? No: he only set up a symbol, not an object of worship. Thou seest here the anointing; see the Anointed also. He is the stone which the builders refused. If Jacob, who was named Israel, saw the ladder, and Nathanael was an Israelite indeed, there was a fitness in our Lord telling him Jacob’s dream; as if he said, Whose name thou art called by, his dream hath appeared unto thee: for thou shalt see the heaven open, and the angels of God ascending and descending upon the Son of man. If they descend upon Him, and ascend to Him, then He is both up above and here below at the same time; above in Himself, below in His members.