'Unable' in the Bible

“You have heard that it was said to the men of old, ‘You shall not murder,’ and ‘Whoever murders shall be guilty before the court.’

But I say to you that everyone who continues to be angry with his brother or harbors malice against him shall be guilty before the court; and whoever speaks [contemptuously and insultingly] to his brother, ‘Raca (You empty-headed idiot)!’ shall be guilty before the supreme court (Sanhedrin); and whoever says, ‘You fool!’ shall be in danger of the fiery hell.

Just as they were going out, a demon-possessed man who was unable to speak was brought to Him.

Do not fear those who kill the body but are unable to kill the soul; but rather fear Him who is able to destroy both soul and body in hell.

Then a demon-possessed man who was blind and unable to speak was brought to Him. He healed him, so that the man could both speak and see.

And He said, “Are you still so dull [and unable to put things together]?

and large crowds came to Him, having with them the lame, the blind, the deformed, those unable to speak, and many others. They put them at His feet, and He healed them.

So the crowd was amazed when they saw those unable to speak talking, the deformed restored, the lame walking, and the blind seeing. And they gave glory to the God of Israel.

and was unable to pay. So his master ordered that he and his wife and children and everything that he had should be sold, and payment be made.

And He came to the disciples and found them sleeping, and said to Peter, “So, you men could not stay awake and keep watch with Me for one hour?