Matthew 23:20

Then spake Jesus to the multitude, and to his disciples,

Saying, The scribes and the Pharisees sit in Moses' seat:

All therefore whatsoever they bid you observe, that observe and do; but do not ye after their works: for they say, and do not.

For they bind heavy burdens and grievous to be borne, and lay them on men's shoulders; but they themselves will not move them with one of their fingers.