The mission statement of my life (and my church family) is to make more and maturing disciples of Jesus Christ. More because Jesus was sent to seek and save the lost, and he sends us out to proclaim the good news of the Kingdom of God (Luke 9:2,60) just as he did. And maturing because a goal of a Christian is to grow in the grace and knowledge of our Master and King, Jesus (2 Peter 3:18).
On that second bit, let me quote a Godly dead guy who passionately believed you didn't stop at conversion, but needed to keep growing. May we all pursue the Master due to his urging!
“You may feel and say, as many do, ‘I was converted and became a Christian. I’ve grown. I’ve grown in knowledge, I’ve been reading books, I’ve been listening to sermons. But I’ve arrived now at a sort of peak, and all I do is maintain that. For the rest of my life I will just go on like this.’
My friend, you must get rid of that attitude; you must get rid of it once and forever. That is religion. It is not Christianity.
This is Christianity: the Lord appears! Suddenly, in the midst of the drudgery and the routine and the sameness and the dullness and the drabness, unexpectedly, surprisingly, he meets with you, and he says something to you that changes the whole of your life and your outlook and lifts you to a level that you had never conceived was possible for you. . . . There is always this glorious possibility of meeting with him in a new and a dynamic way.”
Martyn Lloyd-Jones, Living Water: Studies in John 4 (Wheaton, 2009), page 14.
(HT: Ray Ortlund)