Luke 11:51
From the blood of Abel unto the blood of Zacharias, which perished between the altar and the temple: verily I say unto you, It shall be required of this generation.
Cross-reference
Luke 21:32 uses the same 'this generation will not pass away' phrasing, reinforcing Jesus' focus on the current generation's accountability for prophetic blood.
Genesis 4:8-11 records Abel's murder and his blood crying out — the starting point for the blood of the prophets that Jesus says is charged against this generation.
2 Chronicles 24:20-22 records Zechariah's murder between the altar and sanctuary — the exact event Jesus cites as the last prophet's blood before the exile.
Matthew 23:35 gives the parallel account of Jesus' warning, reinforcing the indictment from Abel to Zechariah.
In Hebrews 12:24, Christ's blood speaks a better word than Abel's — contrasting the cry for vengeance (Luke 11:51) with the blood that brings forgiveness.
Numbers 35:33 establishes the principle that blood pollutes the land and must be avenged, underlying Jesus' warning.
2 Chronicles 24:22 records Zechariah's murder and his cry for vengeance — the very event Jesus references.
Psalm 9:12 affirms that God avenges blood and remembers the afflicted, supporting Jesus' declaration that blood will be required.
Psalm 10:13 shows the wicked denying that God will call to account; Jesus asserts that He will. Direct contrast.
Hebrews 11:37 lists violent deaths of faithful prophets, illustrating the very bloodshed Jesus says this generation is guilty of.
1 Thessalonians 2:16 describes cumulative sin reaching its limit and inviting wrath — parallel to Jesus' warning that this generation's blood guilt has reached its climax.
In 1 John 3:12, Cain's murder of Abel is used as a warning against hatred — the same story Jesus cites as the beginning of prophetic bloodshed.