The first book of Samuel describes the transition from the rule of God’s Old Testament people by the Judges to earthly Kings. We hear about the first king of Israel, Saul, and how the people reject the LORD, while the LORD chooses David to fulfill His promises through. Our summary verse comes from 1 Samuel 16:7: “But the LORD said to Samuel, “Do not look at his appearance or at the height of his 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” (NKJV). 

source https://burdenblessing.podbean.com/e/10-1-samuel-summary-verse/