Charles H. Spurgeon on Psalms 20:3

"That thy burnt offering may be fat." That is, abundant, fruitful, and full. But here we must understand this burnt offering, as we did the sacrifice, in a spiritual sense, as we have before observed. Thus Christ offered up himself wholly upon the cross to be consumed by the fire of love. And here, instead of "all thy sacrifice," it might be rendered "the whole of thy sacrifice." Even as burnt sacrifice (holocaustum) signifies the whole of it being burnt with fire. By which groanings of the Spirit, he shows and teaches the righteous, that they should pray and hope that none of their sufferings shall be vain, but that all shall be well-pleasing, remembered, and fully acceptable. —Martin Luther.