1 Samuel 18:12-15
https://www.lds.org/scriptures/ot/1-sam/18.12-15?lang=eng#11
12 ¶And Saul was afraid of David, because the Lord was with him, and was departed from Saul.
13 Therefore Saul removed him from him, and made him his captain over a thousand; and he went out and came in before the people.
14 And David behaved himself wisely in all his ways; and the Lord was with him.
15 Wherefore when Saul saw that he behaved himself very wisely, he was afraid of him.
Reading the subsequent chapters were also meaningful.