"In a nutshell, John Macarthur brings the harshest criticism that has ever been delivered to the emerging church. Much harsher than I expected and blogged about some months ago. Much harsher than Don Carson, who took the time and effort to mention the positive contributions of the emerging church. Unlike Carson, Macarthur offers no positives at all. He sees the movement as heretical, an assault on the certainty of Scripture, inherently flawed, riddled with gnosticism, and equivalent to a poopslide on the garment of Christ" [some links added].
Andrew Jones responds in some detail to John MacArthur's new book criticizing the emerging church.