Two Sundays ago, I preached a sermon called “Jesus’ Missionary Prayer” from John 17. Here’s a snippet:
So because God is complete in his Trinitarian love and glory-sharing, the reason we exist cannot be because God needs us to love and glorify him. The reason for mission cannot be that he needs us to find more people to love him, as if he lacked love. He already has that in himself. The only possibility is that God wants to share his glory with men and women so that we might be filled and complete as we behold his glory. Carly and I did not want to have children to fill a void in our marriage. We wanted to have children to share the love we have for each other. We didn’t need more love, we wanted to spread love so that our kids might know something of it. Listen to Jesus in vv. 22-24:
22 I have given them the glory that you gave me, that they may be one as we are one: 23 I in them and you in me. May they be brought to complete unity to let the world know that you sent me and have loved them even as you have loved me. 24 “Father, I want those you have given me to be with me where I am, and to see my glory, the glory you have given me because you loved me before the creation of the world.
So, again, let me reiterate that the great goal of mission is that people will behold and experience the glory of God.
But there’s a problem. We have exchanged the glory of God for lesser glories. Money, relationships, power, control, recognition, achievement, or a thousand other things. We want glory in places where glory is menial and temporal.
So we have no right to this glorious divine community—unless, of course, one of the members of the community is cast out to make room for us. And that’s what happened to Jesus on the cross. The cross was his mission—that’s the whole context of this prayer. In v. 1 when he says that his “hour has come,” it’s a term Jesus uses repeatedly throughout John to refer to his appointment with death. The crucifixion has arrived, and Jesus is going to put his glory aside and, in a sense, revolve around us. He is going to willingly step out of sweet fellowship with the Father so that we might be welcomed in and share in God’s glory. But not because God needs us, but because we will never be complete without God.
Listen to the whole sermon.