'Unable' in the Bible

This is why they were unable to believe, because Isaiah also said:

He is the Spirit of truth. The world is unable to receive Him because it doesn’t see Him or know Him. But you do know Him, because He remains with you and will be in you.

Remain in Me, and I in you. Just as a branch is unable to produce fruit by itself unless it remains on the vine, so neither can you unless you remain in Me.

Then they took Jesus from Caiaphas to the governor’s headquarters. It was early morning. They did not enter the headquarters themselves; otherwise they would be defiled and unable to eat the Passover.

“Cast the net on the right side of the boat,” He told them, “and you’ll find some.” So they did, and they were unable to haul it in because of the large number of fish.