Numbers 3:46

And from those ransomed of the two hundred and seventy and three (who are more than the Levites) of the first-born of the sons of Israel,

Exodus 13:13

And every firstling of an ass thou dost ransom with a lamb, and if thou dost not ransom it, then thou hast beheaded it: and every first-born of man among thy sons thou dost ransom.

Numbers 18:15-16

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.

Treasury of Scripture Knowledge

Summary

And for those that are to be redeemed of the two hundred and threescore and thirteen of the firstborn of the children of Israel, which are more than the Levites;

Which are

General references

Bible References

Redeemed

Numbers 18:15
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.
Exodus 13:13
And every firstling of an ass thou dost ransom with a lamb, and if thou dost not ransom it, then thou hast beheaded it: and every first-born of man among thy sons thou dost ransom.

Which are

Numbers 3:39
All those numbered of the Levites whom Moses numbered -- Aaron also -- by the command of Jehovah, by their families, every male from a son of a month and upward, are two and twenty thousand.

General references

Numbers 3:50
from the first-born of the sons of Israel he hath taken the money, a thousand and three hundred and sixty and five -- by the shekel of the sanctuary;