Nevertheless do not rejoice in this, that the spirits are subject to you, but rather rejoice because your names are written in heaven. (Luke 10:20, NKJV)
We must remember to rejoice in the right things. Jesus had sent out seventy of His followers to the cities where He was about to go, giving them miraculous powers to accompany their preaching of the kingdom of God (Luke 10:1, 9). They returned with joy that “even the demons are subject to us in Your name” (Luke 10:17). Jesus rejoiced with them in seeing the power of Satan being overwhelmed by the power of God as they did His work (Luke 10:18-19). Then, He quickly turned their attention to why they should rejoice. By doing so, He turned their joy away from the potential of pride in themselves (“subject to us,” Luke 10:17) to the humble faith needed to do heaven’s work (“your names are written in heaven”). As you do the work of God and rejoice in the gospel’s power, remember you are not the source of your joy, God is. He is the One who makes your victory over Satan and sin possible. You do not write your name in heaven, God does that when you faithfully do the work He gives you to do (Philippians 4:3; Revelation 3:5; 20:12, 15).