'Lack' in the Bible

"All of these," said the young man, "I have carefully kept. What do I still lack?"

In the same way if an uncircumcised man pays attention to the just requirements of the Law, shall not his lack of circumcision be overlooked, and,

And along with him the other Jews also concealed their real opinions, so that even Barnabas was carried away by their lack of straightforwardness.

And so we see that it was owing to lack of faith that they could not be admitted.