'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 saith unto her, 'If they bind me with seven green withs which have not been dried, then I have been weak, and have been as one of the human race.'

And he saith unto her, 'If they certainly bind me with thick bands, new ones, by which work hath not been done, then I have been weak, and have been as one of the human race.'

that he declareth to her all his heart, and saith to her, 'A razor hath not gone up on my head, for a Nazarite to God I am from the womb of my mother; if I have been shaven, then hath my power turned aside from me, and I have been weak, and have been as any of the human race.'