Arcana Coelestia #3119
3119. And he said, Blessed be Jehovah the God of my lord Abraham. That this signifies from the Divine Itself and the Divine Human, is evident from what was said above (n. 3061), where the same words occur, except that the word “blessed” is here added. “Blessed be Jehovah” was a form of thanksgiving, thus also of joy and gladness, when wished-for events took place. (What the ancients meant by “blessing Jehovah,” may be seen above, n. 1096, 1422.)
Isaiah 45:11-12
11
Thus says Yahweh, the Holy One of Israel, and his Maker: "You ask me about the things that are to come, concerning my sons, and you command me concerning the work of my hands!
12
I have made the earth, and created man on it. I, even my hands, have stretched out the heavens; and I have commanded all their army.