Cross reference
Matthew 27:9
9 Then that which was spoken through Jeremiah the prophet was fulfilled, saying, "They took the thirty pieces of silver, The price of him upon whom a price had been set, Whom some of the children of Israel priced,
Zechariah 11:12-13
12 I said to them, "If you think it best, give me my wages; and if not, keep them." So they weighed for my wages thirty pieces of silver.
13 Yahweh said to me, "Throw it to the potter, the handsome price that I was valued at by them!" I took the thirty pieces of silver, and threw them to the potter, in the house of Yahweh.
Exodus 21:32
32 If the bull gores a man-servant or a maid-servant, thirty shekels of silver shall be given to their master, and the ox shall be stoned.
Leviticus 27:2-7
2 "Speak to the children of Israel, and say to them, 'When a man makes a vow, the persons shall be for Yahweh by your valuation.
3 Your valuation shall be of a male from twenty years old even to sixty years old, even your valuation shall be fifty shekels of silver, after the shekel of the sanctuary.
4 If it is a female, then your valuation shall be thirty shekels.
5 If the person is from five years old even to twenty years old, then your valuation shall be for a male twenty shekels, and for a female ten shekels.
6 If the person is from a month old even to five years old, then your valuation shall be for a male five shekels of silver, and for a female your valuation shall be three shekels of silver.
7 If the person is from sixty years old and upward; if it is a male, then your valuation shall be fifteen shekels, and for a female ten shekels.
Matthew 1:22
22 Now all this has happened, that it might be fulfilled which was spoken by the Lord through the prophet, saying,
Matthew 26:15
15 and said, "What are you willing to give me, that I should deliver him to you?" They weighed out for him thirty pieces of silver.