For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.
The careful student should not overlook the fact that this passage (John 3:15) reveals that the eternal life which is available to men is located "in Christ."  This means that eternal life is available only for those who become identified with Christ in the absolute sense, being so united with him that they are in fact "Christ," as Paul declared  (Galatians 2:20).  Nor is this teaching ever lost sight of by the apostle John; he said: