The thought here is: “If the descendents of those who failed to recognize the God of Jewish truth and who slaughtered His servants will be made to witness the survival and the eventual deliverance of the succeeding generations of Israel whom the martyrs had inspired by their own glorious example to remain faithful and of good courage, that will be atonement for the blood of Your servants.

“If, witnessing Israel's survival and redemption, the nations will acquire a better understanding and eventually recognize Jewish truth, then those who were innocently slaughtered will not have died in vain.”