To believe in the power of man in the work of regeneration is the great heresy of Rome, and from that error has come the ruin of the Church - John Wycliffe

"To believe in the power of man in the work of regeneration is the great heresy of Rome, and from that error has come the ruin of the Church. Conversion proceeds from the grace of God alone, and the system which ascribes it partly to man and partly to God is worse than Pelagianism"

John Wycliffe

History of the Reformation of the 16th Century, Vol5