Martyn Lloyd-Jones
The business of the Gospel is to bring people to God, and to reconcile them to God. Not to fill churches! Not to have good statistics! But to reconcile men to God, to save them from the wrath to come.

My brothers, if anyone among you wanders from the truth and someone brings him back, let him know that whoever brings back a sinner from his wandering will save his soul from death and will cover a multitude of sins.
James 5:19-20