'Shame' in the Bible

Have no feeling of shame, then, for the witness of our Lord or for me, his prisoner: but undergo all things for the good news in the measure of the power of God;

And for which I undergo these things: but I have no feeling of shame. For I have knowledge of him in whom I have faith, and I am certain that he is able to keep that which I have given into his care till that day.

May the Lord give mercy to the house of Onesiphorus because he frequently gave me help, and had no feeling of shame because I was in chains;

Let it be your care to get the approval of God, as a workman who has no cause for shame, giving the true word in the right way.