Take heed] Gr. See. Or, See to, chap. 18. 10. Examine it, and trie whether it be sound or no, 1 Thess. 5. 21. 1 John 4:1. beware] Reject it, if ye finde it disagreeable to Gods word, as for the most part ye shall: for when it agrees with Moses his doctrine, it is to be received, chap. 23. 2, 3. of the leaven] Of their doctrine, or rather, the corruption of it: rroneousnesse in doctrine being compared to leaven, because it tainteth it, and takes away the puritie of it, as leaven sowreth, and taketh away the sweetnesse of bread, Galatians 5:9. 1 Corinthians 5:6-8. v. 12. False teachers then are to be heard with much warinesse, Matthew 7:15. This our Saviour teacheth them by a similtude taken from their forgetfulnesse of bread, v. 5. of the Pharisees, and of the Sadues] The doctrine of these two sects did differ very much, but both were contrary to Christs doctrine, and would spread like leaven to infect the hearer, and both of them sought to entrap our Saviour; v. 1. and therefore he warns his disciples to beware of both. The Pharisees were much given to observation of humane traditions, even to the making void of Gods law, chap. 15. 3, 4, 5. and made a great shew of devotion, and strictnesse of life, when they were but meer hypocrites, chap. 23. 5, &c. Luke 12:1. The Sadduces maintained such points of doctrine, as overthrew all grounds of sound religion, Acts 23:8.