'Be Not Afraid' in the Bible

Therefore thus says the Lord GOD of hosts, O my people that dwell in Zion, be not afraid of the Assyrian: he shall strike you with a rod, and shall lift up his staff against you, after the manner of Egypt.

And Isaiah said unto them, Thus shall you say unto your master, Thus says the LORD, Be not afraid of the words that you have heard, with which the servants of the king of Assyria have blasphemed me.

O Zion, that brings good tidings, get you up into the high mountain; O Jerusalem, that brings good tidings, lift up your voice with strength; lift it up, be not afraid; say unto the cities of Judah, Behold your God!