I don't often listen to "music," as the vast majority of it is secular and anti-Christian, and thus to be avoided (Ecclesiastes 7:5), and most music purporting to be "Christian" is really of the Devil (2 Corinthians 11:14). However, when pumping iron or running through the woods to promote the manly, muscular Christianity embodied by Jesus (1 Corinthians 6:19), there's one Godly song that always gets me going.