2139. That the rational would be made Divine, is signified by the "son" whom Sarah was to bear (verse 10). That the human rational truth that was with the Lord did not perceive this, and thus did not believe it, is signified by Sarah's "laughing" at the door of the tent that was behind him (verses 10-13, 15). It is confirmed that the Lord would put off this also, and would put on in its place truth Divine (verse 14).