2079. Verse 19. And God said, Truly Sarah thy wife shall bear thee a son, and thou shalt call his name Isaac, and I will set up My covenant with him for an eternal covenant, to his seed after him. “God said,” signifies an answer perceived; “truly Sarah thy wife,” signifies the Divine truth conjoined with good; “shall bear thee a son,” signifies that the rational is from this; “and thou shalt call his name Isaac,” signifies the Divine rational; “and I will set up My covenant with him,” signifies union; “for an eternal covenant,” signifies an eternal union; “to his seed after him,” signifies those who should have faith in the Lord.