Theophylact of Bulgaria
To prevent the disciples from believing that trials and tribulations could hinder the proclamation of the good news, the Lord emphasizes that "the gospel must first be preached in all nations," after which Jerusalem would face desolation. Indeed, the gospel was disseminated widely prior to Jerusalem's destruction, as noted by Paul: "Through all the earth," he declares, "their voice went forth, and unto the ends of the universe their word" (Rom. 10:18). This reality intensified the condemnation of the Jews, for the message had spread extensively even before Jerusalem's downfall. Observing the rapid spread of this preaching across the globe, they should have acknowledged God's might, repented, and consequently avoided disaster. However, their lack of awareness sealed their fate, leading to even greater condemnation.