Psalm 149

Let the high praises of God be in their mouth,
And a two-edged sword in their hand, v.6

Read chapter 149
Two opposites seems like in this verse here of the saints: singing praises and battling at war.  Yet perhaps this is what daily life for the believer is and should be in this dispensation.    They aren't always in a place of comfort and ease but also ready for time of warfare.  I couldn't have put it better as Charles Spurgeon described, the believers "way of fighting is of an extraordinary sort, for they sing to God but keep their swords in their hands. They can do two things at a time: if they do not wield the trowel and the sword, at least they sing and strike. In this Israel was not an example, but a type: we will not copy the chosen people in making literal war, but we will fulfill the emblem by carrying on spiritual war. We praise God and contend with our corruptions; we sing joyfully and war earnestly with evil of every kind. Our weapons are not carnal, but they are mighty, and wound with both back and edge. The word of God is all edge; whichever way we turn it, it strikes deadly blows at falsehood and wickedness. If we do not praise we shall grow sad in our conflict; and if we do not fight we shall become presumptuous in our song. The verse indicates a happy blending of the chorister and the crusader. Note how each thing in the believer is emphatic: if he sings, it is high praises, and praises deep down in his throat, as the original hath it; and if he fights, it is with the sword, and the sword is two edged."  
So in your battles, shout high praises and use that two-edge sword, the Bible.  It may be contrary to the way the world but the joy in our souls in this life and the one to come will prove the winner.