'Fit' in the Bible

"How terrible it will be for you, scribes and Pharisees, you hypocrites! You travel over land and sea to make a single convert, and when this happens you make him twice as fit for hell as you are.

Jesus told him, "No one who puts his hand to the plow and looks back is fit for the kingdom of God."

Up to this point they listened to him, but then they began to shout, "Away with such a fellow from the earth! He's not fit to go on living!"

For I am the least of the apostles and not even fit to be called an apostle because I persecuted God's church.