The world bears the Gospel a grudge because the Gospel condemns the religious wisdom of the world. Jealous for its own religious views, the world in turn charges the Gospel with being a subversive and licentious doctrine, offensive to God and man, a doctrine to be persecuted as the worst plague on earth. As a result we have this paradoxical situation: The Gospel supplies the world with the salvation of Jesus Christ, peace of conscience, and every blessing. Just for that the world abhors the Gospel.
Luther, Commentary on Galatians 1:1