'Do Not Be Afraid' in the Bible

Isaiah said to them, “Thus you shall say to your master, ‘Thus says the Lord, “Do not be afraid because of the words that you have heard, with which the servants of the king of Assyria have blasphemed Me.

‘Do not tremble and do not be afraid;Have I not long since announced it to you and declared it?And you are My witnesses.Is there any God besides Me,Or is there any other Rock?I know of none.’”