'Weak' in the Bible

And Israel is very weak from the presence of Midian, and the sons of Israel cry unto Jehovah.

And he saith unto him, 'O, my lord, wherewith do I save Israel? lo, my chief is weak in Manasseh, and I the least in the house of my father.'

And Samson said unto her, If they bind me with seven green withs that were never dried, then shall I be weak, and be as another man.

And he said unto her, If they bind me fast with new ropes that never were occupied, then shall I be weak, and be as another man.

Later on, Delilah told Samson, "You're still mocking me and telling me lies! Tell me how to tie you up!" He answered her, "If you weave the seven locks on my head into a loom and fasten it with a peg, then I will become weak and just like any other human being."

That he told her all his heart, and said unto her, There hath not come a rasor upon mine head; for I have been a Nazarite unto God from my mother's womb: if I be shaven, then my strength will go from me, and I shall become weak, and be like any other man.