I never got this. They say he is omnipotent, therefore he does not perceive time in a linear way like we do. He knows everything that ever was, is and will be all at once. So there is not much to test here. Either he does the things needed to make me a believer or he doesn’t. It’s his choice and not mine. Free will is meaningless here, even if it does exist, he does already knows my choice before I make it or he is not omnipotent.

Omnipotent means “all-powerful.” Omniscient means “all-knowing.”

Correct. But the Christian belief is that God is also omniscient. He is the three omnis: omnipotent, omniscient, and omnipresent