I kill ... I wound ... I will make mine arrows drunk with blood, and my sword shall devour flesh. Deuteronomy 32:39-42
Until now, everything went well for Jonathan and his brothers. They slaughtered Gentiles, heathens, wicked sinners, and traitorous Jews wherever they went. Once in a while, when they didn't pray hard enough, they ran into a bit of trouble, but that was quickly fixed by falling on their faces, rending their garments, putting dirt on the heads, and crying to the Lord.
So when an army of strangers attacked Jonathan's army and his army ran away,
Behold the army of the strangers met him [Jonathan] ... And all that were on Jonathan's side fled. 1 Maccabees 11:68-70
he knew just what to do.
Jonathan rent his garments, and cast earth upon his head, and prayed. 11:71
Having done that, the rest was easy. His army returned and together they attacked the aliens at Cades, killing 3000 of them.
And Jonathan turned again to them to battle ... And there fell of the aliens in that day three thousand men. 11:72-74