Soldiers of Christ, Arise

Soldiers of Christ, arise,
And put your armor on,
Strong in the strength which God supplies
Through his eternal Son. 

So armed, we need not fear, and we can say, with the psalmist, that we go “from strength to strength” (Ps. 84:7), we can “tread down the wicked” (Mal. 4:3), and we can win what Saint Paul won, who “fought the good fight,” and finished the race, and kept the faith, as he wrote to Timothy, the old veteran to the young colonel (2 Tim. 4:7):

From strength to strength go on,
Wrestle, and fight, and pray:
Tread all the powers of darkness down
And win the well-fought day.

Charles Wesley hymn, quoted by Anthony Esolen

https://insidethevatican.com/magazine/meditation/marking-all-saints-day-in-song/