'Know that I Am the Lord' in the Bible

And I will take you for my people and will be to you a God. And ye shall know that I am the LORD your God which brings you out from under the burdens of the Egyptians.

And the Egyptians shall know that I am the LORD when I have stretched forth my hand upon Egypt, and have brought out the children of Israel from among them."

Wherefore, thus sayeth the LORD: hereby thou shalt know that I am the LORD. Behold, I will smite with the staff that is in mine hand upon the waters that are in the river, and they shall turn to blood.

But I will separate the same day the land of Goshen where my people are, so that there shall no flies be there: that thou mayest know that I am the LORD upon the earth.

And I will harden his heart, that he shall follow after them, that I may get me honour upon Pharaoh and upon all his host, that the Egyptians may know that I am the LORD." And they did even so.

And the Egyptians shall know that I am the LORD when I have gotten me honour upon Pharaoh, upon his chariots and upon his horsemen."

"I have heard the murmuring of the children of Israel, tell them therefore and say that at evening they shall eat flesh, and in the morning they shall be filled with bread, and ye shall know that I am the LORD your God."

And they shall know that I am the LORD their God that brought them out of the land of Egypt for to dwell among them: even I the LORD their God."