"Messengers"

Here's another good one by Tim Keller. "Messengers", Luke 10:1-21 | Gospel in Life. 

"As disciples of Jesus, we are his messengers, and our mission is to communicate the belief that we have in Christ. Service based on performance, pride, and self-image can be manipulative and harmful, but service based on who we are in Christ allows us to rejoice in what God does in our lives and in the lives of others." from Gospel in Life　

”Nevertheless, do not rejoice in this, that the spirits are subject to you, but rejoice that your names are written in heaven." Luke 10:20