Verse 6

and if from a son of a month even unto a son of five years -- then hath thy valuation been of the male five shekels of silver, and for the female thy valuation `is' three shekels of silver;

Referenced Verses

• Num 3:40-43 : 40 And Jehovah saith unto Moses, `Number every first-born male of the sons of Israel from a son of a month and upward, and take up the number of their names; 41 and thou hast taken the Levites for Me (I `am' Jehovah), instead of every first-born among the sons of Israel, and the cattle of the Levites instead of every firstling among the cattle of the sons of Israel.' 42 And Moses numbereth, as Jehovah hath commanded him, all the first-born among the sons of Israel. 43 And all the first-born -- male -- by the number of names, from a son of a month and upward, of their numbered ones, are two and twenty thousand two hundred and seventy and three.
• Num 18:14-16 : 14 every devoted thing in Israel is thine, 15 every one opening a womb of all flesh which they bring near to Jehovah, among man and among beast, is thine; only, thou dost certainly ransom the first-born of man, and the firstling of the unclean beast thou dost ransom. 16 `And their ransomed ones from a son of a month, thou dost ransom with thy valuation, of silver, five shekels, by the shekel of the sanctuary, twenty gerahs it `is'.