'Persuaded' in the Bible

and being fully persuaded that what he has promised he is able also to do;

For I am persuaded that neither death, nor life, nor angels, nor principalities, nor things present, nor things to come, nor powers,

One man esteems day more than day; another esteems every day alike. Let each be fully persuaded in his own mind.

I know, and am persuaded in the Lord Jesus, that nothing is unclean of itself; except to him who reckons anything to be unclean, to that man it is unclean.

But I am persuaded, my brethren, I myself also, concerning you, that yourselves also are full of goodness, filled with all knowledge, able also to admonish one another.