Time and time again in Scripture, you see the battle won when the army was praising God. 2 Chronicles 20:21-22 says:
After talking it over with the people, Jehoshaphat appointed a choir for God; dressed in holy robes, they were to march ahead of the troops, singing,
Give thanks to God, His love never quits.
As soon as they started shouting and praising, God set ambushes against the men of Ammon, Moab, and Mount Seir as they were attacking Judah, and they all ended up dead.
In light of what's going on in the world recently, it is so easy to feel overcome, even as a Christian. But as I praise and worship my God, I realise there is still Hope. I find the strength to stand up and keep fighting. I find the purpose I need to fulfil my dreams. I find the reason to live, the reason to breathe, and the reason to fight. Victory isn't won on the battlefield with swords drawn, victory is won through surrender. It's won down on your knees, praising God, and trusting Him to work all things together for good. When your eyes and heart are set on Jesus, there is a supernatural strength that comes with that, an ability to rise above the darkness, and see things through the eyes of Hope.