'Although' in the Bible

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.

For you know the grace of our Lord Jesus, the Messiah. Although he was rich, for your sakes he became poor, so that you, through his poverty, might become rich.

I must boast, although it does not do any good. Let's talk about visions and revelations from the Lord.

I have already warned those who sinned previously and all the rest. Although I am absent now, I am warning them as I did on my second visit: If I come back, I will not spare you,