Matthew 23:30

and say 'Had we been living in the days of our ancestors, we should have taken part in their murder of the Prophets!

Matthew 21:35-36

But the tenants seized his servants, beat one, killed another, and stoned a third.

Matthew 23:34-35

That is why I send you Prophets, wise men, and Teachers of the Law, some of whom you will crucify and kill, and some of whom you will scourge in your Synagogues, and persecute from town to town;

Treasury of Scripture Knowledge

Summary

And say, If we had been in the days of our fathers, we would not have been partakers with them in the blood of the prophets.

Bible References

The blood

Matthew 23:34
That is why I send you Prophets, wise men, and Teachers of the Law, some of whom you will crucify and kill, and some of whom you will scourge in your Synagogues, and persecute from town to town;
Matthew 21:35
But the tenants seized his servants, beat one, killed another, and stoned a third.