Only in and by Christ alone

"Here the gospel differs from all the devices of human wisdom. It shows us the living and true God coming down the whole of the infinite distance himself, not to meet returning man, but to overtake and prevent him, when hastening to utter ruin; to seek and to save them that were lost. It shows us God come down to men, Immanuel, God with us. The great truth for which we are indebted to the gospel is, that God was made manifest in the flesh. In the person of Jesus Christ, the distance betwixt God and man is entirely removed. There appeared man in his lowest misery that he can either feel or fear. There appeared the just god in his highest majesty of character: The fullness of the Divine good pleasure rests on him, who became exceeding sorrowful even unto death. There we see Divine vengeance executed against sin to the utmost, yet the eternal God became the refuge of the guilty. There God appears, not working deliverance by halves, not co-operating with sinful man, not restoring his depraved, faculties, and assisting him less or more to deliver himself; but working complete deliverance for man without his concurrence in the least." - Robert Sandeman, Letters on Theron and Aspasio