'Regret' in the Bible

You must certainly give to him and not feel regret for doing so. Because of this, the LORD your God will bless all your works and everything you do.

"I regret that I made Saul king, because he has turned away from following me and has not carried out my commands." Samuel was angry, and he cried out to the LORD all night.

Jehoram was 32 years old when he became king, and he reigned in Jerusalem for eight years. He left this earth to nobody's regret and they buried him in the City of David, but not in the tombs of the kings.

If I made you sad with my letter, I do not regret it, although I did regret it then. I see that the letter caused you sorrow, though only for a while.

Each of you must give what you have decided in your heart, not with regret or under compulsion, since God loves a cheerful giver.