The Lord does not do His work in isolation. He graciously has decided to give us His followers the blessing of joining Him in His work. From the very beginning of His ministry He called others to be with him, to have the power to preach, to heal sicknesses, and to storm the gates of hell with the Gospel of Jesus. This is still the mandate of Christ today. We are now the disciples whom He calls!
Mark 3:13-19
Jesus went up on a mountainside and called to him those he wanted, and they came to him. He appointed twelve[a] that they might be with him and that he might send them out to preach and to have authority to drive out demons. These are the twelve he appointed: Simon (to whom he gave the name Peter), James son of Zebedee and his brother John (to them he gave the name Boanerges, which means “sons of thunder”), Andrew, Philip, Bartholomew, Matthew, Thomas, James son of Alphaeus, Thaddaeus, Simon the Zealot and Judas Iscariot, who betrayed him.