'Examine' in the Bible

And the children of the captivity did so. And Ezra the priest, with certain chief of the fathers, after the house of their fathers, and all of them by their names, were separated, and sat down in the first day of the tenth month to examine the matter.

Examine me, O LORD, and prove me; try my reins and my heart.

Mine answer to them that do examine me is this,

But let a man examine himself, and so let him eat of that bread, and drink of that cup.

Examine yourselves, whether ye be in the faith; prove your own selves. Know ye not your own selves, how that Jesus Christ is in you, except ye be reprobates?