Jesus said to them, `Beware, and take heed of the leaven of the Pharisees and Sadducees;’… Then they understood that he did not say to take heed of the leaven of the bread, but of the teaching, of the Pharisees and Sadducees. Matthew 16:6,12
Jesus warned the people against the doctrine of the Pharisees, who are well known to have believed in endless punishment. There is no doubt, that the doctrines of the Pharisees were of a partial nature. Jesus was impartial in his teachings. He was the friend of publicans and sinners, and for this the Pharisees hated him. This was the great point on which he differed from the Pharisees. Their doctrine peculiarly was a doctrine of cruelty, wrath, and partiality; his was a doctrine of love, compassion, and universal grace. No person, who will make the comparison fairly, can avoid coming to this result. Beware of the leaven of the Pharisees.
From 100 Scriptural Proofs That Jesus Christ Will Save All Mankind (#63) by Thomas Whittemore