21 But the people remained silent and said nothing in reply, because the king had commanded, “Do not answer him.”

Read Isaiah 36:21 Using Other Translations

But they held their peace, and answered him not a word: for the king's commandment was, saying, Answer him not.
But they were silent and answered him not a word, for the king's command was, "Do not answer him."
But the people were silent and did not utter a word because Hezekiah had commanded them, “Do not answer him.”