'Think' in the Bible

Be ye also ready: for in an hour that ye think not the Son of man cometh.

Think ye that I am come to give peace in the earth? I tell you, Nay; but rather division:

And he answered and said unto them, Think ye that these Galilaeans were sinners above all the Galilaeans, because they have suffered these things?

Or those eighteen, upon whom the tower in Siloam fell, and killed them, think ye that they were offenders above all the men that dwell in Jerusalem?