Isaiah 36:21

Unto this Hezekiah's messengers held their tongues, and answered not one word: for the king had charged them that they should give him none answer.

Proverbs 26:4

Give not the fool an answer after his foolishness, lest thou become like unto him;

2 Kings 18:26

Then said Eliakim the son of Hilkiah and Shebnah and Joah, to Rabshakeh, "Speak, we pray thee, to thy servants in the Syrians' language, for we understand it: and talk not with us in the Jews' tongue, in the ears of the people that are on the walls."

2 Kings 18:37

Then Eliakim the steward of household, and Shebnah the scribe and Joah the son of Asaph the recorder, came to Hezekiah with their clothes rent and told him the words of Rabshakeh.

Psalm 38:13-15

As for me, I was like a deaf man and heard not; as one that were dumb, not opening his mouth.

Psalm 39:1

{To the Chanter, for praising, a Psalm of David} I said, "I will take heed to my ways, that I offend not in my tongue. I will keep my mouth as it were with a bridle, while the ungodly is in my sight."

Proverbs 9:7-8

Whoso reproveth a scornful person, getteth himself dishonour: and he that rebuketh the ungodly, staineth himself.

Amos 5:13

Therefore the wise must now be fain to hold his tongue, so wicked a time is it.

Matthew 7:6

Give not that which is holy to dogs, neither cast ye your pearls before swine, lest they tread them under their feet, and the other turn again and all to rend you.

Treasury of Scripture Knowledge

Summary

But they held their peace, and answered him not a word: for the king's commandment was, saying, Answer him not.

Bible References

General references

2 Kings 18:26
Then said Eliakim the son of Hilkiah and Shebnah and Joah, to Rabshakeh, "Speak, we pray thee, to thy servants in the Syrians' language, for we understand it: and talk not with us in the Jews' tongue, in the ears of the people that are on the walls."
Psalm 38:13
As for me, I was like a deaf man and heard not; as one that were dumb, not opening his mouth.
Psalm 39:1
{To the Chanter, for praising, a Psalm of David} I said, "I will take heed to my ways, that I offend not in my tongue. I will keep my mouth as it were with a bridle, while the ungodly is in my sight."
Proverbs 9:7
Whoso reproveth a scornful person, getteth himself dishonour: and he that rebuketh the ungodly, staineth himself.
Proverbs 26:4
Give not the fool an answer after his foolishness, lest thou become like unto him;
Amos 5:13
Therefore the wise must now be fain to hold his tongue, so wicked a time is it.
Matthew 7:6
Give not that which is holy to dogs, neither cast ye your pearls before swine, lest they tread them under their feet, and the other turn again and all to rend you.