It has been pointed out that the Church is always one generation from extinction. If we don't spread the Gospel, it will be just one generation away from disappearing from the face of the earth. It's a compelling idea, isn't it? It enhances our sense of Christian responsibility. We need to get out there and work for the Gospel or the Church could fade into history.
Perhaps you have heard the old story about Jesus appearing in heaven just after his resurrection. Jesus is giving a progress report on all that has happened while he was on earth. Moses is there and he asks him, "Well Jesus, did you leave things in capable hands?"
Jesus responds, "I did. I have left behind Mary and Martha and Peter and the other disciples.
"Moses said, "What if they fail?"
Jesus said, "Well, I have established the Church and filled it with the Holy Spirit and they will carry on."
And Moses said, "What if they fail?"
Came the reply, "I have no other plan."
There's a great tension there. God is at work here in our church but we've been given the keys of the Kingdom. We have work to do and Christ calls us to it. The prophet Micah put it this way: "do justice, love mercy and walk humbly with thy God."