'Fit' in the Bible

I indeed baptise you with water to repentance, but he that comes after me is mightier than I, whose sandals I am not fit to bear; he shall baptise you with the Holy Spirit and fire;

Ye are the salt of the earth; but if the salt have become insipid, wherewith shall it be salted? It is no longer fit for anything but to be cast out and to be trodden under foot by men.

And the centurion answered and said, Lord, I am not fit that thou shouldest enter under my roof; but only speak a word, and my servant shall be healed.

“Woe to you, scribes and Pharisees, hypocrites! You travel over land and sea to make one proselyte, and when he becomes one, you make him twice as fit for hell as you are!