'Otherwise' in the Bible

I did not mean the immoral people of this world or the greedy and swindlers or idolaters; otherwise you would have to leave the world.

Do not deprive one another sexually—except when you agree for a time, to devote yourselves to prayer. Then come together again; otherwise, Satan may tempt you because of your lack of self-control.

For the unbelieving husband is set apart for God by the wife, and the unbelieving wife is set apart for God by the husband. Otherwise your children would be corrupt, but now they are set apart for God.

Otherwise, if you praise with the spirit, how will the uninformed person say “Amen” at your giving of thanks, since he does not know what you are saying?

Otherwise what will they do who are being baptized for the dead? If the dead are not raised at all, then why are people baptized for them?