'Ashamed' in the Bible

Be not therefore ashamed of the testimony of our Lord, nor of me his prisoner; but suffer evil along with the glad tidings, according to the power of God;

For which cause also I suffer these things; but I am not ashamed; for I know whom I have believed, and am persuaded that he is able to keep for that day the deposit I have entrusted to him.

The Lord grant mercy to the house of Onesiphorus, for he has often refreshed me, and has not been ashamed of my chain;

Strive diligently to present thyself approved to God, a workman that has not to be ashamed, cutting in a straight line the word of truth.