'Strength' in the Bible

You think mere words are strategy and strength for war. What are you now relying on so that you have rebelled against me?

They said to him, “This is what Hezekiah says: ‘Today is a day of distress, rebuke, and disgrace, for children have come to the point of birth, but there is no strength to deliver them.

Before him there was no king like him who turned to the Lord with all his mind and with all his heart and with all his strength according to all the law of Moses, and no one like him arose after him.