'Certainty' in the Bible

To cause thee to know the certainty of sayings of truth, To return sayings of truth to those sending thee.

I have drawn near unto one of those standing, and the certainty I seek from him of all this; and he hath said to me, yea, the interpretation of the things he hath caused me to know:

'Then I wished for certainty concerning the fourth beast, that was diverse from them all, fearful exceedingly; its teeth of iron, and its nails of brass, it hath devoured, it doth break small, and the remnant with its feet it hath trampled;

that thou mayest know the certainty of the things wherein thou wast instructed.

and some were crying out one thing, and some another, among the multitude, and not being able to know the certainty because of the tumult, he commanded him to be carried to the castle,

and on the morrow, intending to know the certainty wherefore he is accused by the Jews, he did loose him from the bonds, and commanded the chief priests and all their sanhedrim to come, and having brought down Paul, he set him before them.