'Assured' in the Bible

Seeing that many did take in hand to set in order a narration of the matters that have been fully assured among us,

One doth judge one day above another, and another doth judge every day alike; let each in his own mind be fully assured.

and the Lord stood by me, and did strengthen me, that through me the preaching might be fully assured, and all the nations might hear, and I was freed out of the mouth of a lion,