'Face' in the Bible

For the present we see things as if in a mirror, and are puzzled; but then we shall see them face to face. For the present the knowledge I gain is imperfect; but then I shall know fully, even as I am fully known.

and the hidden evils of his heart are brought to light. And, as the result, he will fall on his face and worship God, and will report to others that of a truth God is among you.