Here is the link to his letter to the church
Here is the video of him sharing with the church about his leave:
I thank God for him. Yes, as an apprentice/student in his seminary I am going to greatly miss his instruction and leadership over the coming 8 months. However, he is teaching me something through his actions that can’t be absorbed in a lecture, and this is exactly the reason I have come to sit under him for pastoral training.
All too often a pastor is resistant when his elder team begs him to step down for a season to examine his own heart and relationships. It is a genuine grace from God when a pastor is perceptive to his own sin and honest enough to take initiative in stepping down from public ministry for a season.

So I will come out and say it, do you think this has anything to do with the Rick Warren stuff? You’ll probably say no, but I think it does…