Midrash sa Mga Awit 110:6: Midrash Tehillim

"For their blood demands vengeance. When the Holy One, blessed be He, comes to demand the blood of Rabbi Akiva, He will demand the blood of Bar Kappara. He has not forgotten the cry of the oppressed. He does not forget the blood of Israel from the nations, nor the blood of righteous ones who were killed. They are Rabban Shimon ben Gamliel, Rabbi Yishmael ben Elisha, Rabbi Yishbab the Scribe, Rabbi Chutzpit the Translator, Rabbi Yosei, Rabbi Yehuda ben Bava, Rabbi Yehuda the Notary, Rabbi Shimon ben Azzai, Rabbi Chanina ben Teradion, and Rabbi Akiva. Regarding them, the verse speaks: "For their blood demands vengeance." And in the future, the Holy One, blessed be He, will demand the blood of Bar Kappara and Rabbi Yehuda the Notary. Once, a wicked government decree was made to kill Rabbi Yehuda the Notary. What did Bar Kappara do? He made himself a judge and judged him. And when he came to give him a spoon to eat with, he decreed that another person should be slaughtered under him. He then spread slanderous rumors that Rabbi Yehuda was not killed. The wicked government then issued another decree to kill them both, and they were both killed and cut into pieces. And in the future, the Holy One, blessed be He, will demand their blood, as it is written: "For their blood demands vengeance." Rabbi Abbahu said in the name of Rabbi Elazar, "Every righteous person whom the nations of the world kill, the Holy One, blessed be He, writes his name in His book, as it says: "He will judge among the nations, filling them with corpses." And the Holy One, blessed be He, says to them, 'Why did you kill so-and-so?' And they deny it, saying, 'We did not kill him.' What does the Holy One, blessed be He, do? He brings out His book and judges them, giving them lashes. He has not forgotten the cry of the oppressed."

I will praise the Lord with all my heart. As it is written (Isaiah 30:26), "And the light of the moon will be like the light of the sun, and the light of the sun will be sevenfold, like the light of the seven days, on the day that the Lord binds up the injuries of His people, and heals the wounds inflicted by His blow." This refers to the time when the Tower of Babel fell, which was caused by the wicked who prevent the light from shining in the world. It is also said (Judges 5:31), "Thus let all your enemies perish, O Lord!" At that time (ibid.), "And those who love Him are like the rising of the sun in its might." And at that time, God heals the brokenness of His people, as it is said (Isaiah 30:26), "On the day that the Lord binds up the injuries of His people." (Joel 4:14) "Multitudes, multitudes in the valley of decision." What is the valley of decision? It is a place where the judgment of those who fall there is final. As it is said (Jeremiah 25:33), "And the slain of the Lord shall be on that day from one end of the earth to the other end of the earth." (Until now they did not know.) (Psalm 110:6) "He will judge among the nations, He will fill them with corpses, He will crush the heads of many over the wide earth." In the future, rivers of blood will flow from the wicked, and the birds will come to drink from the stream of blood, as it is said (ibid. 7), "He will drink from the brook on the way." And the stream creates waves, and the wave comes to wash it away, and it lifts its head, as it is said (ibid.), "Therefore He will lift up His head." David said, "Praise and thanks I give for this." Therefore, we say Hallelujah.