Acts 1:18
Now this man purchased a field with the reward of iniquity; and falling headlong, he burst asunder in the midst, and all his bowels gushed out.
Cross-reference
Matthew 27:3-10 provides the fuller story of Judas's betrayal money and the field, matching the field bought with reward here.
Matthew 27:5 records Judas's suicide by hanging — a companion account to Acts 1:18's details of his death.
2 Peter 2:15 explicitly warns of those who 'loved the wages of unrighteousness' — directly echoes the reward that led to Judas's death.
Zechariah 11:13 prophesies the thirty pieces of silver thrown to the potter, which Matthew connects to the field bought with Judas' reward.
Matthew 26:15 records the thirty pieces of silver paid to Judas, the 'reward of his wickedness' that bought the field.
Luke 22:5 reports the chief priests' agreement to pay Judas, directly supplying the 'reward of his wickedness'.
In Deuteronomy 27:25, the curse on taking a bribe to shed innocent blood directly parallels Judas accepting blood money to betray Jesus.
Joshua 7:21-26 recounts Achan's hidden sin and execution — like Judas, he acquired ill-gotten gain and faced divine judgment at a specific place.
2 Kings 5:20-27 shows Gehazi's greed for Naaman's gifts — he too was punished for dishonest gain, echoing Judas's fate.