'Strength' in the Bible

Then Zebah and Zalmun'na said, "Rise yourself, and fall upon us; for as the man is, so is his strength." And Gideon arose and slew Zebah and Zalmun'na; and he took the crescents that were on the necks of their camels.

And the lords of the Philistines came to her and said to her, "Entice him, and see wherein his great strength lies, and by what means we may overpower him, that we may bind him to subdue him; and we will each give you eleven hundred pieces of silver."

And Deli'lah said to Samson, "Please tell me wherein your great strength lies, and how you might be bound, that one could subdue you."

Now she had men lying in wait in an inner chamber. And she said to him, "The Philistines are upon you, Samson!" But he snapped the bowstrings, as a string of tow snaps when it touches the fire. So the secret of his strength was not known.

And she said to him, "How can you say, 'I love you,' when your heart is not with me? You have mocked me these three times, and you have not told me wherein your great strength lies."

And he told her all his mind, and said to her, "A razor has never come upon my head; for I have been a Nazirite to God from my mother's womb. If I be shaved, then my strength will leave me, and I shall become weak, and be like any other man."

She made him sleep upon her knees; and she called a man, and had him shave off the seven locks of his head. Then she began to torment him, and his strength left him.