1037. That 'and God said' means that it was so has been stated and shown already; for God's or Jehovah's saying, or His having said, means that it was so. Because the most ancient people used to weave together as a historical tale things to do with the Church, they would say, when wishing to assert that something was so, 'God said' or 'Jehovah said'. With them this was a commonplace expression for asserting and confirming something.

In Zechariah 8:12, 'the vine shall give her fruit, and the ground her increase,' signifies that the spiritual affection of truth produces the good of charity, and the natural affection of good and truth produces the works of charity.

(Odkazy: Apocalypse Explained 695)