Mark 12:5
And again he sent another; and him they killed, and many others; beating some, and killing some.
Cross-references
Mark 9:13 notes that Elijah (John the Baptist) suffered as they pleased — the same pattern of killing God's messengers seen in this parable.
Nehemiah 9:30 recounts how God patiently sent prophets but Israel would not listen — the same pattern of rejected messengers as in this parable.
Jeremiah 7:25-26 describes God persistently sending prophets whom the people refused to listen to — the very pattern this parable allegorizes.
Matthew 21:35 is the parallel account of the same parable — identical treatment of servants by tenants.
Matthew 21:36 continues the parallel — more servants sent and similarly mistreated, same parable.
Matthew 23:37 explicitly states Jerusalem kills prophets — directly matching the fate of the servants in the parable.
Luke 6:23 says the fathers persecuted the prophets — the same pattern as the servants killed in the parable.
Matthew 5:12 connects to the pattern of prophet persecution — the servants in the parable suffer like the prophets before them.
Matthew 22:6 echoes the rejection of servants in a different parable — the wedding feast's servants also killed.
Luke 6:22 blesses those persecuted for the Son — similar to the persecution of the servants, but applied to disciples.