HE teaches my hands to make War

Psalm 18:32-34 (NKJV)
It is God who arms me with strength,
And makes my way perfect.
He makes my feet like the feet of deer,
And sets me on my high places,
He teaches my hands to make war,
So that my arms can bend a bow of bronze.

Comment from Life Application Bible:
God promises to give us strength to meet challenges, but he doesn't promise to eliminate them. If he gave us no rough roads to walk, no mountains to climb, and no battles to fight, we would not grow. He does not leave us alone with our challenges, however. Instead he stands beside us, teaches us, and strenghthens us to face them.