Then one of the twelve, called Judas Iscariot, went to the chief priests 15 and said, “What are you willing to give me if I deliver Him to you?” And they counted out to him thirty pieces of silver. 16 So from that time he sought opportunity to betray Him. — Matthew 26:14-16.
“one of the twelve, called Judas Iscariot” (v.14) – Judas was one of the twelve disciples of Jesus. He had conspired with the chief priests to deliver Jesus to them and had received thirty pieces of silver for his treachery (Matthew 26:3-5, 14-16). John informs us that Judas was the disciple who carried the “money box” containing the common funds of Jesus’ disciples during His public ministry (John 12:6; see also 13:29). He was also a thief and stole from these funds. He was a greedy man who apparently thought he could profit monetarily from the hatred of the chief priests for Jesus.
“thirty pieces of silver” (v.15) — This fulfilled the prophecy of Zech. 11:12-13 (cf. Matt. 27:9-10). Jesus was the rejected Shepherd. It was the price paid in the OT for a gored slave (cf. Exod. 21:32). Chapters 9-14 of Zechariah are quoted several times as a prophetic source in relation to Jesus’ ministry.