His Blood be upon us. Some, not all Jews, are cursed.

Acts 18:  1 After these things, departing from Athens, he came to Corinth. 2 And finding a certain Jew, named Aquila, born in Pontus, lately come from Italy, with Priscilla his wife, (because that Claudius had commanded all Jews to depart from Rome,) he came to them.  3 And because he was of the same trade, he remained with them, and wrought; (now they were tentmakers by trade.)  4 And he reasoned in the synagogue every sabbath, bringing in the name of the Lord Jesus; and he persuaded the Jews and the Greeks.  5 And when Silas and Timothy were come from Macedonia, Paul was earnest in preaching, testifying to the Jews, that Jesus is the Christ.6 But they gainsaying and blaspheming, he shook his garments, and said to them: Your blood be upon your own heads; I am clean: from henceforth I will go unto the Gentiles.

Haydock Commentary; Ver. 6. Shaking his garments. See Matt. x. 14. Your blood be upon your own heads: that is, you are guilty of your own perdition: we have discharged our duty by preaching to you. Wi.

Matt:27 22 Pilate saith to them: What shall I do then with Jesus that is called Christ? They say all: Let him be crucified.  23 The governor said to them: Why, what evil hath he done? But they cried out the more, saying: Let him be crucified.  24 And Pilate seeing that he prevailed nothing, but that rather a tumult was made; taking water washed his hands before the people, saying: I am innocent of the blood of this just man; look you to it.  25 And the whole people answering, said: His blood be upon us and our children.

Haydock Commentary 

Ver. 25. All the people answered: his blood be upon us, and upon our children which continues, saith S. Jerom, to this day. Then Pilate delivered to them Jesus to be crucified. Wi. — This blasphemous prayer continues to this day, and will continue a protracted curse upon the Jews, and upon their posterity. Origen. — Behold the insanity of the Jews! Their passion and pertinacious obstinacy will not suffer them to see and understand: they draw down curses upon themselves in these terrible imprecations: his blood be upon us and upon our children. Still the God of all mercies did not literally comply with their impious prayer. For, of these children he selected some for himself; amongst the rest even Paul, and many thousands who were converted at Jerusalem. S. Chrys.