'Be Not Afraid' in the Bible

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

And Isaiah said to them, Thus shall ye say to your master, Thus saith the LORD, Be not afraid of the words that thou hast heard, with which the servants of the king of Assyria have blasphemed me.

O Zion, that bringest good tidings, go up upon the high mountain: O Jerusalem, that bringest good tidings, lift up thy voice with strength; lift it up, be not afraid; say to the cities of Judah, Behold your God!