Jesus Died for God's Glory

I've heard it said by one preacher that one of the main reasons Jesus died was to preserve the freedom of man. Wrong. Jesus died for God's glory. John Piper, in his classic, The Pleasures of God, writes,

"...God would not just sweep the sins of his chosen people under the rug of the universe. If God was simply going to acquit guilty, God-belittling sinners by faith, then something terrible and awesome had to happen to vindicate his allegiance to the worth of his glory. And that something was the death of his Son. This death demonstrated the inexpressible passion God has for the worth of his glory and for the vindication of righteousness...We know that everything Jesus did in life and death he did for the glory of his Father...The very purpose for which Jesus came to the hour of his death was to glorify the Father. Jesus wants us to see that his willingness to lose his life is because of his love for the glory of the Father. This is how the worth of God's glory is magnified in the death of Jesus." (p. 165, 2000 edition)