Exodus 14:4

⁴ And I will harden Pharaoh's heart, that he may pursue after them; and I will glorify myself in Pharaoh, and in all his host; and the Egyptians shall know that I am Jehovah. And they did so.

God called out of the bush

In Exodus 3:4, this signifies influx from the Divine. (Arcana Coelestia 6840)