1 Samuel 16:7-14 New American Standard Bible (NASB)
7 But the Lord said to Samuel, “Do not look at his appearance or at the height of his stature, because I have rejected him; for [b]God sees not as man sees, for man looks at the outward appearance, but the Lord looks at the heart.” 8 Then Jesse called Abinadab and made him pass before Samuel. And he said, “The Lord has not chosen this one either.” 9 Next Jesse made [c]Shammah pass by. And he said, “The Lord has not chosen this one either.” 10 Thus Jesse made seven of his sons pass before Samuel. But Samuel said to Jesse, “The Lord has not chosen these.” 11 And Samuel said to Jesse, “Are these all the children?” And he said, “There remains yet the youngest, and behold, he is tending the sheep.” Then Samuel said to Jesse, “Send and [d]bring him; for we will not sit down until he comes here.” 12 So he sent and brought him in. Now he was ruddy, with beautiful eyes and a handsome appearance. And the Lord said, “Arise, anoint him; for this is he.” 13 Then Samuel took the horn of oil and anointed him in the midst of his brothers; and the Spirit of the Lord came mightily upon David from that day forward. And Samuel arose and went to Ramah.
It feels contradictory since (1 Samuel 16:7) states that we should Not look at appearance or stature, but then as we read on, we come across the fact that David was (1 Samuel 16:12) ruddy, with beautiful eyes and a handsome appearance. Doesn't it sound contradictory?