Mark 12:12
And they sought to lay hold on him, but feared the people: for they knew that he had spoken the parable against them: and they left him, and went their way.
Cross-reference
Mark 12:7 is the parable's climax where tenants plot to kill the son — the very part the leaders realize is aimed at them.
Mark 11:18 shows the chief priests seeking to destroy Jesus but fearing the crowd — same fear and intent as here.
Mark 11:32 describes the leaders' fear of the people regarding John's baptism — a similar fear of public opinion.
2 Samuel 12:7-15 has Nathan use a parable to convict David — a direct OT type of Jesus' parable that exposed the leaders' guilt.
1 Kings 20:38-41 shows a prophet using a story to make Ahab condemn himself — the same parabolic technique Jesus uses here.
Matthew 21:45 directly parallels Mark 12:12 — the leaders perceive the parable is against them.
Matthew 21:46 records the same reaction: the leaders wanted to arrest Jesus but feared the crowds.
Luke 20:19 describes the same plot: the scribes and chief priests sought to lay hands on Jesus that hour but feared the people.
Luke 19:47 describes the same hostility — chief priests seeking to kill Jesus — complementing Mark's account of their intent to arrest him.
Matthew 21:26 records the same fear of the crowd about John — a parallel situation of fearing the people's response.