Matthew 26:15

26:15 and said, “What will you give me to betray him into your hands?” So they set out thirty silver coins for him.

Exodus 21:32

21:32 If the ox gores a male servant or a female servant, the owner must pay thirty shekels of silver, and the ox must be stoned.

Leviticus 27:2-7

27:2 “Speak to the Israelites and tell them, ‘When a man makes a special votive offering based on the conversion value of persons to the Lord, 27:3 the conversion value of the male from twenty years old up to sixty years old is fifty shekels by the standard of the sanctuary shekel. 27:4 If the person is a female, the conversion value is thirty shekels. 27:5 If the person is from five years old up to twenty years old, the conversion value of the male is twenty shekels, and for the female ten shekels. 27:6 If the person is one month old up to five years old, the conversion value of the male is five shekels of silver, and for the female the conversion value is three shekels of silver. 27:7 If the person is from sixty years old and older, if he is a male the conversion value is fifteen shekels, and for the female ten shekels.