'Do Not Be Afraid' in the Bible

Therefore, the Lord God of hosts says this, “O My people who dwell in Zion, do not be afraid of the Assyrian who strikes you with a rod and lifts up his staff against you, as [the king of] Egypt did.

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