Luke 11:44

Woe unto you! because you are like tombs unseen, and men walking over them do not know it.

Matthew 23:27-28

Woe unto you, scribes and Pharisees, hypocrites! because you are like whitened sepulchers, which are beautiful indeed externally, but within they are full of the hones of the dead people, and every impurity.

Acts 23:3

Then Paul said to him, God is about to smite thee, thou whitewashed wall: indeed thou art sitting judging me according to the law, and dost thou command me to be smitten contrary to the law?

Treasury of Scripture Knowledge

Summary

Woe unto you, scribes and Pharisees, hypocrites! for ye are as graves which appear not, and the men that walk over them are not aware of them.

Bible References

For

Matthew 23:27
Woe unto you, scribes and Pharisees, hypocrites! because you are like whitened sepulchers, which are beautiful indeed externally, but within they are full of the hones of the dead people, and every impurity.
Acts 23:3
Then Paul said to him, God is about to smite thee, thou whitewashed wall: indeed thou art sitting judging me according to the law, and dost thou command me to be smitten contrary to the law?