2637. When Isaac his son was born unto him. That this signifies when the Lord’s rational was made Divine, is evident from the signification of “being born,” which is to come forth [existere] (see n. 2584, 2621, 2629) and from the representation of “Isaac,” as being the Divine rational (see n. 2630). This is said to be “born to Abraham,” when made Divine; as also above, verse 3: “Abraham called the name of his son that was born unto him” (see n. 2628).