1 Peter 3:3-4

Your adornments must be not of an external nature, with braids of hair or ornaments of gold, or changes of dress,

2 Peter 2:22

In them is verified the truth of the proverb, "A dog turns back to what he has vomited"; and of that other proverb, "A sow that has washed herself goes back to wallow in the mire."

Treasury of Scripture Knowledge

Summary

As a jewel of gold in a swine's snout, so is a fair woman which is without discretion.

Bible References

A jewel

1 Peter 3:3
Your adornments must be not of an external nature, with braids of hair or ornaments of gold, or changes of dress,
2 Peter 2:22
In them is verified the truth of the proverb, "A dog turns back to what he has vomited"; and of that other proverb, "A sow that has washed herself goes back to wallow in the mire."