Luke 11:44

Woe to you, for ye are as tombs which are unseen, and men walking over them know it not.

Matthew 23:27-28

Woe to you, scribes and Pharisees, hypocrites! for ye are like whited sepulchres, which outwardly indeed appear beautiful, but within are full of dead mens bones, and of all uncleanness.

Acts 23:3

Then Paul said to him, God will smite thee, thou whited wall! Art thou then sitting to judge 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 to you, scribes and Pharisees, hypocrites! for ye are like whited sepulchres, which outwardly indeed appear beautiful, but within are full of dead mens bones, and of all uncleanness.
Acts 23:3
Then Paul said to him, God will smite thee, thou whited wall! Art thou then sitting to judge me according to the law, and dost thou command me to be smitten contrary to the law?