Matthew 23:27

Like an earthen vessel overlaid with silver dross Are fiery lips and an evil heart.

“Again, you have heard that the ancients were told, ‘You shall not make false vows, but shall fulfill your vows to the Lord.’

“But woe to you, scribes and Pharisees, hypocrites, because you shut off the kingdom of heaven from people; for you do not enter in yourselves, nor do you allow those who are entering to go in.

“Woe to you! For you are like concealed tombs, and the people who walk over them are unaware of it.”

Then Paul said to him, “God is going to strike you, you whitewashed wall! Do you sit to try me according to the Law, and in violation of the Law order me to be struck?”

you, therefore, who teach another, do you not teach yourself? You who preach that one shall not steal, do you steal?

As many as are wanting to make a good showing in the flesh, these are trying to compel you to be circumcised, simply so that they will not be persecuted for the cross of Christ.