“This will give you
ἀποβήσεται ὑμῖν εἰς μαρτύριον.
Luke indicated that Jesus said that this persecution would give them an opportunity (ἀποβήσεται ὑμῖν) to testify as a witness or a martyr (εἰς μαρτύριον). This verse is somewhat similar to Mark, chapter 13:10, with a hint of this in Matthew, chapter 24:14. Mark indicated that Jesus said that the good news of the gospel (τὸ εὐαγγέλιον) must first be proclaimed (πρῶτον δεῖ κηρυχθῆναι) to all the gentile nations (καὶ εἰς πάντα τὰ ἔθνη). That would be a difficult task, certainly putting the end times at a further distance. This mission to the gentile nations was a trademark of the Gospel of Mark with its emphasis on the gentile non-Jewish Christians. Matthew had the same idea in chapter 10:22, and also in chapter 24:14, where Jesus said that this gospel, this good news of the kingdom (τοῦτο τὸ εὐαγγέλιον τῆς βασιλείας) would be preached (καὶ κηρυχθήσεται) throughout the whole inhabited world (ἐν ὅλῃ τῇ οἰκουμένῃ), as a witness or testimony to all the gentile nations (εἰς μαρτύριον πᾶσιν τοῖς ἔθνεσιν). Then the end would come (καὶ τότε ἥξει τὸ τέλος). Matthew seemed to set a precondition before the coming of the end times that the gospel would be preached throughout the whole known world. Luke was more restrained here simply saying that there was an opportunity to be a witness or martyr. Would you be a Christian martyr?