Then Samuel asked Jesse, “Are these all the sons you have?” Jesse replied, “There is still the youngest, who is tending the sheep.” Samuel said to Jesse, “Send for him; we will not begin the sacrificial banquet until he arrives here.” Jesse sent and had the young man brought to them. He was ruddy, a youth handsome to behold and making a splendid appearance. The LORD said, “There–anoint him, for this is he!” Then Samuel, with the horn of oil in hand, anointed him in the midst of his brothers;and from that day on, the Spirit of the LORD rushed upon David. (1 Sam 16:1-13)
https://bible.usccb.org/bible/readings/011822.cfm
After presenting 7 sons to Samuel, poor Jesse must have been surprised and a bit exasperated when the old prophet asked, “Are these all the sons you have?” But God chose the youngest son, David . . . and the rest is salvation history.