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.”
Even a godly man like Samuel couldn’t help but judge a man’s character by his appearance. This is why we must continually go to the Lord for His wisdom; only He sees the heart.
16:7 his appearance … height of his stature. Samuel needed to be reminded that God’s anointed was not chosen because of physical attributes. This was initially a difficult concept for Samuel as he was accustomed to a king whose only positive attributes were physical. the Lord looks at the heart. The Hebrew concept of “heart” embodies emotions, will, intellect, and desires. The life of the man will reflect his heart (cf. Mt 12:34, 35).
16:7 man looks on the outward appearance, but the Lord looks on the heart. Outward appearance cannot predict whether someone will faithfully obey the Lord, for a person’s actions flow from his heart (cf. 2 Chron. 16:9; Ps. 51:10; Prov. 4:23; Mark 7:21–23; Luke 6:45; 1 Thess. 2:4). The “heart” in Scripture refers to a person’s inward moral and spiritual life, including the emotions, will, and reason.
16:7 The choice of David contrasts with people’s looking on outward appearance (10:23–24). The contrast prefigures people’s rejection of Christ’s humiliation and suffering (Isa. 53:3; 1 Cor. 1:18–31).
16:7 the heart God emphasizes that superficial and non-spiritual considerations are not to be critical criteria for the choice of God’s leaders.
16:7 stature, because I have rejected him. The reference to “stature” as a false measure of an individual’s qualification to be king, along with the notice that this son of Jesse is “rejected,” is reminiscent of Saul, who was notable for his height (9:2; 10:23) but was rejected (15:23, 26).
the Lord looks on the heart. It is an axiom that God’s standards are inward, not outward (13:14 note; Rom. 2:28, 29). See “God Sees and Knows: Divine Omniscience” at Prov. 15:3.
 Stanley, C. F. (2005). The Charles F. Stanley life principles Bible: New King James Version (1 Sa 16:7). Nashville, TN: Nelson Bibles.
 MacArthur, J. F., Jr. (2006). The MacArthur study Bible: New American Standard Bible. (1 Sa 16:7). Nashville, TN: Thomas Nelson Publishers.
 Sproul, R. C. (Ed.). (2005). The Reformation Study Bible: English Standard Version (p. 402). Orlando, FL; Lake Mary, FL: Ligonier Ministries.