Leviticus 27:4

2 Speak unto the children of Israel, and say unto them, When a man shall make a singular vow, the persons for the Yahuah by your estimation.

3 And your estimation shall be of the male from twenty years old even unto sixty years old, even your estimation shall be fifty shekels of silver, after the shekel of the sanctuary.

4 And if it a female, then your estimation shall be thirty shekels.

5 And if from five years old even unto twenty years old, then your estimation shall be of the male twenty shekels, and for the female ten shekels.

6 And if from a month old even unto five years old, then your estimation shall be of the male five shekels of silver, and for the female your estimation three shekels of silver.