'Unable' in the Bible

One friend deceives another and no one tells the truth. These people have trained themselves to tell lies. They do wrong and are unable to repent.

Why are You like a helpless man,like a warrior unable to save?Yet You are among us, Yahweh,and we are called by Your name.Don’t leave us!

See, I am the Lord, the God of all flesh: is there anything so hard that I am unable to do it?

But I will strip Esau bare;I will uncover his secret places.He will try to hide himself, but he will be unable.His descendants will be destroyedalong with his relatives and neighbors.He will exist no longer.