Proverbs 30:32

If thou hast done foolishly in lifting up thyself, or if thou hast thought evil, lay thy hand upon thy mouth.

Job 21:5

Mark me, and be astonished, and lay your hand upon your mouth.

Job 40:4

Behold, I am vile; what shall I answer thee? I will lay my hand upon my mouth.

Proverbs 17:28

Even a fool, when he holdeth his peace, is counted wise: and he that shutteth his lips is esteemed a man of understanding.

Proverbs 26:12

Seest thou a man wise in his own conceit? there is more hope of a fool than of him.

Ecclesiastes 8:3-4

Be not hasty to go out of his sight: stand not in an evil thing; for he doeth whatever pleaseth him.

Micah 7:16-17

The nations shall see and be confounded at all their might: they shall lay their hand upon their mouth, their ears shall be deaf.

Romans 3:19

Now we know that whatever things the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.

Treasury of Scripture Knowledge

Summary

If thou hast done foolishly in lifting up thyself, or if thou hast thought evil, lay thine hand upon thy mouth.

Bible References

Thou hast done

Proverbs 26:12
Seest thou a man wise in his own conceit? there is more hope of a fool than of him.
Ecclesiastes 8:3
Be not hasty to go out of his sight: stand not in an evil thing; for he doeth whatever pleaseth him.

Lay

Proverbs 17:28
Even a fool, when he holdeth his peace, is counted wise: and he that shutteth his lips is esteemed a man of understanding.
Job 21:5
Mark me, and be astonished, and lay your hand upon your mouth.
Job 40:4
Behold, I am vile; what shall I answer thee? I will lay my hand upon my mouth.
Ecclesiastes 8:4
Where the word of a king is, there is power: and who may say to him, what doest thou?
Micah 7:16
The nations shall see and be confounded at all their might: they shall lay their hand upon their mouth, their ears shall be deaf.
Romans 3:19
Now we know that whatever things the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.