7 For if that first covenant had been faultless, then no place would have been sought for a second. 8 Because finding fault with them, He says: “Behold, the days are coming, says the Lord, when I will make a new covenant with the house of Israel and with the house of Judah—” (Hebrews 8:7–8, NKJV)
We are not under the Old Testament law today. The first covenant (the Sinai covenant God commanded Israel) “made nothing perfect” (Heb. 7:19). That is, the law given through Moses, with all its animal sacrifices and offerings, could not “take away sins” (Heb. 10:1-4). In this sense, it was weak and unprofitable (Heb. 7:18). This was not the law’s fault, for it was not designed to be the sinner’s mean of justification and redemption. If it were, then Jesus died in vain (Gal. 2:21). The law (first covenant) was a “tutor” to bring sinners to Christ, to be “justified by faith” (Gal. 3:24). It was added to the Abrahamic promise “because of transgressions” (Gal. 3:17-19). The first covenant exposed the sinfulness of sin, and by doing so, turned men to God for divine mercy (Rom. 3:20; 7:13; 11:30-31). Now, Christ has mediated a “better covenant,” established on “better promises” (Heb. 8:6). The new covenant (the New Testament) dispenses merciful forgiveness and an eternal inheritance (Heb. 8:12). Here is a fundamental reason why we are not under the Old Testament law. It was a shadow of what has now been accomplished in Jesus Christ. It has passed away (Heb. 10:1; 8:13).