Substitutionary Atonement

I read this quote in Muscular Christianity this morning and thought I'd pass it along:

The ultimate cause of our salvation is the Father's will, which the Son fulfilled by the sacrifice of himself on the cross.  Freely and willingly, unlike brute animals, Jesus loved the church and gave himself for her.  The sinless Son of God, our great high priest, offered himself as the perfect offering as our substitute.  We will not experience even an infinitesimally small part of God's wrath; he suffered it all in our place.