Proverbs 30:32

If you have done foolishly in lifting yourself up, or if you have thought evil, lay your hand on your mouth.

Job 21:5

Turn to me and be amazed, and lay your hand on your mouth.

Job 40:4

Behold, I am vile! What shall I answer You? I will lay my hand on my mouth.

Proverbs 17:28

Even a fool, when he is silent, is counted wise, and he who shuts his lips is counted as a man of understanding.

Proverbs 26:12

Do you see a man wise in his own eyes? There is more hope for a fool than for him.

Ecclesiastes 8:3-4

Do not be hasty to leave his presence. Do not take a stand in an evil thing, for he does whatever pleases him.

Micah 7:16-17

The nations shall see and be ashamed at all their might; they shall lay their hand on their mouth; their ears shall be deaf.

Romans 3:19

But we know that whatever things the Law says, it says to those who are under the Law; so that every mouth may be stopped and all the world may be under judgment 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
Do you see a man wise in his own eyes? There is more hope for a fool than for him.
Ecclesiastes 8:3
Do not be hasty to leave his presence. Do not take a stand in an evil thing, for he does whatever pleases him.

Lay

Proverbs 17:28
Even a fool, when he is silent, is counted wise, and he who shuts his lips is counted as a man of understanding.
Job 21:5
Turn to me and be amazed, and lay your hand on your mouth.
Job 40:4
Behold, I am vile! What shall I answer You? I will lay my hand on my mouth.
Ecclesiastes 8:4
Because the word of a king is that which has power; and who may say to him, What are you doing?
Micah 7:16
The nations shall see and be ashamed at all their might; they shall lay their hand on their mouth; their ears shall be deaf.
Romans 3:19
But we know that whatever things the Law says, it says to those who are under the Law; so that every mouth may be stopped and all the world may be under judgment before God,