1 Samuel 20:3 Then David took an oath again, and said, “Your father certainly knows that I have found favor in your eyes, and he has said, ‘Do not let Jonathan know this, lest he be grieved.’ But truly, as the Lord lives and as your soul lives, there is but a step between me and death.”

1 Samuel 16: 7 But the Lord said to Samuel, “Do not look at his appearance or at his physical stature, because I have refused him; for the Lord does not see as man sees, for man looks at the outward appearance, but the Lord looks at the heart.”