Denny Burk has this to say:
Gathering with God’s people like this isn’t an optional add-on to following Christ. It is part and parcel of being and disciple. To neglect this is to deny the faith altogether. . . .And make no mistake, that is exactly what Miller has done. He has rejected Christ. I pray for Donald Miller's repentance. Wouldn't it be wonderful if Miller truly came to Christ and then repudiated all those terrible books he's written?
In other words, faithfulness to Christ is not defined by personal piety alone. It is defined in part by persevering in and among God’s people in the church. To walk away from the church is to walk away from Christ. [Read the rest here.]