John Witherspoon commenting on Revelation 6:14-17 and the terror that will come upon sinners when they stand before the wrath of the Lamb:
Mark this extraordinary expression, the wrath of the Lamb, that meekest and gentlest of all creatures; teaching us, that his former meekness and patience and suffering shall inflame and exasperate his future vengeance.
Could I conduct you to the gates of the infernal prison, I am persuaded you will hear Judas Iscariot, and all the other treacherous disciples, crying out, “O that Christ had never come in the flesh! The thunders of Sinai would have been less terrible. The frowns of Jesus of Nazareth are insupportable. O the dreadful, painful, and uncommon wrath of a Saviour on the judgment seat!”
The Lord speaks consolation to his own people, and pierce the hearts of his enemies, that they may be brought to repentance. (Sermon 6, The Love of Christ in Redemption)