Strength and Conditioning

So let it be in God's own might
We gird us for the coming fight,
And, strong in Him whose cause is ours
In conflict with unholy powers,
We grasp the weapons he has given,—
The Light, and Truth, and Love of Heaven.

As thy days, so shall thy strength be.

Strength instead of being the lusty child of passion, grows by grappling with and subduing them.