'Unable' in the Bible

During the reign of Ahaz son of Jotham, son of Uzziah, king of Judah, King Rezin of Syria and King Pekah son of Remaliah of Israel marched up to Jerusalem to do battle, but they were unable to prevail against it.

And he will go through the land in bitter trouble and in need of food; and when he is unable to get food, he will become angry, cursing his king and his God, and his eyes will be turned to heaven on high;

“As my hand has reached to the kingdoms of the idols,Whose carved images were greater and more feared than those of Jerusalem and Samaria,

As for him whose food is the dust of a dead fire, he has been turned from the way by a twisted mind, so that he is unable to keep himself safe by saying, What I have here in my hand is false.

Together they bend low and kneel down; they are unable to rescue the images; they themselves head off into captivity.

They put him on their backs, and take him up, and put him in his fixed place, from which he may not be moved; if a man gives a cry for help to him, he is unable to give an answer, or get him out of his trouble.

But disaster will happen to you;you will not know how to avert it.And it will fall on you,but you will be unable to ward it off.Devastation will happen to you suddenlyand unexpectedly.

Why, then, when I came, was there no man? and no one to give answer to my voice? has my hand become feeble, so that it is unable to take up your cause? or have I no power to make you free? See, at my word the sea becomes dry, I make the rivers a waste land: their fish are dead for need of water, and make an evil smell.

His watchmen are blind,All of them know nothing.All of them are mute dogs unable to bark,Dreamers lying down, who love to slumber;

But the wicked are like a surging sea that is unable to be quiet; its waves toss up mud and sand.

Truly, the Lord's hand has not become short, so that he is unable to give salvation; and his ear is not shut from hearing:

And justice is pushed back, and righteousness stands afar; for truth stumbles in the public square, and straightforwardness is unable to enter,