'Disbelieving' in the Bible

And [while] they were still disbelieving because of joy and were marveling, he said to them, "Do you have anything {to eat} here?"

But the disbelieving Jews stirred up and embittered the souls of the Gentiles against the brothers.

and when certain were hardened and were disbelieving, speaking evil of the way before the multitude, having departed from them, he did separate the disciples, every day reasoning in the school of a certain Tyrannus.