'Need' in the Bible

The Lord paid attention to Hannah’s need, and she conceived and gave birth to three sons and two daughters. Meanwhile, the boy Samuel grew up in the presence of the Lord.

Saul told David, “Here is my oldest daughter Merab. I’ll give her to you as a wife, if you will be a warrior for me and fight the Lord’s battles.” But Saul was thinking, “My hand doesn’t need to be against him; let the hand of the Philistines be against him.”