'Confidently' in the Bible

Then Samuel said, "Bring Agag the king of Amalek out to me!" Agag came to him confidently, for Agag thought, "Surely the bitterness of death {is over}."

And this happened: the choicest of your valleys were full of chariots, and the cavalry confidently stood at the gate.

wanting to be teachers of the law, [although they] do not understand either [the things] which they are saying or [the things] concerning which they are speaking confidently.