'Imperfect' in the Bible

For we know in part, and we prophesy in part [for our knowledge is fragmentary and incomplete].

But when that which is complete and perfect comes, that which is incomplete and partial will pass away.

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.