Psalm 27:3
"Though an host should encamp against me, my heart shall not fear: though war should rise against me, in this will I be confident."
Cross References (ranked by relevance)
I will not be afraid of ten thousands of people, that have set themselves against me round about.
But and if ye suffer for righteousness’ sake, happy are ye: and be not afraid of their terror, neither be troubled;
And in nothing terrified by your adversaries: which is to them an evident token of perdition, but to you of salvation, and that of God.
Fear none of those things which thou shalt suffer: behold, the devil shall cast some of you into prison, that ye may be tried; and ye shall have tribulation ten days: be thou faithful unto death, and I will give thee a crown of life.
And he said, Hearken ye, all Judah, and ye inhabitants of Jerusalem, and thou king Jehoshaphat, Thus saith the LORD unto you, Be not afraid nor dismayed by reason of this great multitude; for the battle is not yours, but God’s.
Is not this thy fear, thy confidence, thy hope, and the uprightness of thy ways?
The righteous also shall see, and fear, and shall laugh at him: