Religion: Analyzing Psalms 27

When I read Psalms 27 it gives me strength from where I have come from. Psalms 27:1 says "The Lord is MY light and my salvation; whom shall I fear? the Lord is the strength of my life, of whom shall I be afraid." The song "Everlasting God" by William Murphy contains those words, we should have no fear of evil principalities because Jesus gives us the victory.