Matthew 15:11 Meaning

9But in vain they do worship me, teaching for doctrines the commandments of men.

10And he called the multitude, and said unto them, Hear, and understand:

11Not that which goeth into the mouth defileth a man; but that which cometh out of the mouth, this defileth a man.

12Then came his disciples, and said unto him, Knowest thou that the Pharisees were offended, after they heard this saying?

13But he answered and said, Every plant, which my heavenly Father hath not planted, shall be rooted up.