14And this gospel of the kingdom will be proclaimed throughout the whole world as a testimony to all nations, and then the end will come.
Jesus is not saying that all nations must be converted before the end will come, but that the work of preaching and proclamation will continue until he comes again in glory.1 There is a suggestion in his words that there will be a lengthy time before his second advent.2
14 And this gospel of the kingdom will be proclaimed throughout the whole world as a testimony to all nations, and then the end will come.