Verse 20 It cannot now be positively ascertained in what part of the year the birth of the Savior took place. In the absence of all certain information, however, the night before the 25th of December has been fixed upon, by a sort of common consent, and is celebrated in various ways, throughout almost all Christendom, as the anniversary of the Savior's birth night. Luke 2:21,22. The law, in respect to these transactions, is recorded in Leviticus 12:1-8: For an account of the original consecration of all the first-born to God's service, see Exodus 13:1,2,14,15. Afterwards the tribe of Levi was substituted for the first-born, in the service of the sanctuary, as shown in Numbers 8:13-18, and provision was made for redeeming the first-born, Numbers 18:15,16.