| Barnes' Notes on the Bible As it is written ... - Exodus 13:2.
Gill's Exposition of the Entire BibleAs it is written in the law of the Lord,.... In Exodus 13:2. every male that openeth the womb, shall be called holy to the Lord; that is, devoted and consecrated to him, and so to be redeemed. The reason of this law was this, when God smote all the firstborn of Egypt, he saved the firstborn of Israel; and therefore claimed a right to them, and obliged their parents, excepting the Levites, to redeem them at the price of five shekels, which were about twelve shillings and six pence of our money, and which was given to the Levites: see Exodus 13:12 And this law our Lord came under as Mary s firstborn, and as one holy to the Lord; and such a sum of money was now paid for his redemption, who was the great Redeemer of his people: he being made under the law, and in all things subject to it, that he might redeem them from the bondage, curse, and condemnation of it. Now as the tribe of Levi was excepted from this law, it is a clear case, that Mary, though allied to Elisabeth, was not of the tribe of Levi, otherwise her firstborn would not have been subject to it (y), "An Israelite that comes from a priestess, or from a she Levite, is free, (i.e. from the redemption of the firstborn;) for the thing does not depend on the father, but on the mother, as it is said, that openeth the womb in Israel. (y) Maimon. Hilch. Biccurim c. 11. sect. 10.
Vincent's Word StudiesThe law of the Lord The word law occurs in this chapter five times; oftener than in all the rest of this Gospel put together. Luke emphasizes the fact that Jesus" was made under the law" (Galatians 4:4), and accordingly elaborates the details of the fulfilment of the law by the parents of both John and Jesus.
Geneva Study Bible(As it is written in the law of the LORD, Every male that openeth the womb shall be called holy to the Lord;)
People's New Testament 2:23 Every male... shall be called holy to the Lord. That is, devoted to the Lord. See Ex 13:12. All the first-born were to be presented to the Lord and redeemed by an offering (Nu 18:15).
Wesley's Notes 2:23 Exo 13:2.
Matthew Henry's Concise Commentary2:21-24 Our Lord Jesus was not born in sin, and did not need that mortification of a corrupt nature, or that renewal unto holiness, which were signified by circumcision. This ordinance was, in his case, a pledge of his future perfect obedience to the whole law, in the midst of sufferings and temptations, even unto death for us. At the end of forty days, Mary went up to the temple to offer the appointed sacrifices for her purification. Joseph also presented the holy child Jesus, because, as a first-born son, he was to be presented to the Lord, and redeemed according to the law. Let us present our children to the Lord who gave them to us, beseeching him to redeem them from sin and death, and make them holy to himself. | 
