Hebrews 8:7-8 (AMP) For if that first covenant had been without defect, there would have been no room for another one, or an attempt to institute another one. [8] However, He finds fault with them [showing its inadequacy] when He says, “Behold the days will come,” says the LORD, “when I will make and ratify a new covenant or agreement with the house of Israel and with the house of Judah.

If the Jewish law had been perfect, and if everyone could follow it…there would have been no reason to send Jesus. But that’s the catch…..the Law wasn’t perfect. We needed a Savior, not a set of rules. Jesus IS the new covenant from vs. 8. 
I’m glad Jesus came!! Aren’t you? ✝