For God so loved the world, that he gave his only begotten Son, that whosoever believes in him should not perish, but have everlasting life.
All Commentaries on John 3:16 Go To John 3
Tertullian of Carthage
AD 220
In His address to Nicodemus He says: "So God loved the world, that He gave His only-begotten Son, that whosoever believeth in Him should not perish, but have everlasting life.".
John, in fact, exhorts us to lay down our lives even for our brethren.
Too, that ye may be able to quench the darts of the devil, when doubtless ye resist him, and sustain his assaults in their utmost force. Accordingly John also teaches that we must lay down our lives for the brethren;