'Doubt' in the Bible

This he said, testing him: for he had no doubt what he himself would do.

Then the Jews came round him, saying, how long are you going to keep us in doubt? If you are the Christ, say so clearly.

Then the eyes of the disciples were turned on one another, in doubt as to whom he had in mind.

I have said these things to you so that you may not be in doubt.

Then he said to Thomas, Put out your finger, and see my hands; and put your hand here into my side: and be no longer in doubt but have belief.