And Isaiah said to them, "Thus you shall say to your master, "Thus says the LORD: "Do not be afraid of the words which you have heard, with which the servants of the king of Assyria have blasphemed Me.
Isaiah 37:6
Surrounding context
37:5 So the servants of King Hezekiah came to Isaiah.
37:6 And Isaiah said to them, "Thus you shall say to your master, "Thus says the LORD: "Do not be afraid of the words which you have heard, with which the servants of the king of Assyria have blasphemed Me.
37:7 Surely I will send a spirit upon him, and he shall hear a rumor and return to his own land; and I will cause him to fall by the sword in his own land.""'