Isaac of Nineveh

The sum of all is God, the Lord of all, who from love of his creatures has delivered his Son to death on the cross. For God so loved the world that he gave his only begotten Son for it. Not that he was unable to save us in another way, but in this way it was possible to show us his abundant love abundantly, namely, by bringing us near to him by the death of his Son. If he had anything more dear to him, he would have given it to us, in order that by it our race might be his. And out of his great love he did not even choose to urge our freedom by compulsion, though he was able to do so. But his aim was that we should come near to him by the love of our mind. And our Lord obeyed his Father out of love for us.