When the Lord selects, or chooses, an individual or group, he usually also calls them to serve.

Choose you this day whom ye will serve, Josh. 24: 15 (Alma 30: 8; Moses 6: 33). I have chosen thee in the furnace of affliction, Isa. 48: 10 (1 Ne. 20: 10). Ye have not chosen me, but I have chosen you, John 15: 16. God has chosen the foolish things of the world to confound the wise, 1 Cor. 1: 27. He has chosen us before the foundation of the world, Eph. 1: 4. We are free to choose liberty and eternal life or captivity and death, 2 Ne. 2: 27. Noble and great ones were chosen in the beginning, D&C 138: 55-56. Israel was chosen by God, Moses 1: 26. Abraham was chosen before he was born, Abr. 3: 23.