What the Bible says about Schoolmaster, Law as
(From Forerunner Commentary)

Deuteronomy 29:4 Generally, people under the Old Covenant did not have the Spirit of God. They were carnal. Thus, God designed the covenant to have a carnal approach—that of a schoolmaster. Because the life-giving Spirit has made that approach obsolete, the old administration is also set aside and is replaced by an administration that can give life. John W. Ritenbaugh The Covenants, Grace, and Law (Part Eighteen) Related Topics: God's Holy Spirit | Guardian, Old Covenant as | Law as Schoolmaster | New Covenant, Superior to Old | Old Covenant | Old Covenant as Schoolmaster | Old Covenant as Tutor | Schoolmaster, Law as | Spirit of God

Hebrews 10:1-3 "Those sacrifices" identifies the body of laws being talked of here - the sacrifices, of which the law is just a shadow. They were not a part of the original covenant, but were added later (see Jeremiah 7:22-23). Verse 3 tells us why it was considered to be a schoolmaster. God had a good reason for them doing these things: They were to remind people of sin. They did not define sin. They were commanded because people were sinning; He made them give sacrifices to remind them that they were sinning! John W. Ritenbaugh The Covenants, Grace, and Law (Part Seventeen) Related Topics: Christ's Sacrifice | Food and Drink Offerings | Forms, Shadows, Symbols, and Types | Jesus Christ's Sacrifice | Sacrifice | Sacrifice as Metaphor | Sacrifices | Sacrifices, Animal | Schoolmaster | Schoolmaster, Law as | Sin | Sin Offering