'Remain' in the Bible

I say to the unmarried and to widows: It is good for them if they remain as I am.

But if she does leave, she must remain unmarried or be reconciled to her husband—and a husband is not to leave his wife.

Each person should remain in the life situation in which he was called.

Brothers, each person should remain with God in whatever situation he was called.

Now these three remain:faith, hope, and love.But the greatest of these is love.

Then He appeared to over 500 brothers at one time;most of them are still alive,but some have fallen asleep.

and perhaps I will remain with you or even spend the winter, so that you may send me on my way wherever I go.