No, you would have that totally wrong… the law was holy, just and good (Rom 7:12; 1Tim 1:8), but it was weakened however by the flesh (Rom 8:3), and had righteousness come through the law then Christ died in vain (Gal 2:21; Heb 7:11). The law served as far as it could until Christ (Gal 3:24-25).
According to Hebrews chapter 11, the covenant that God made was one of faith.
That was but one aspect… but WHY, apart from positional dogmatism, would you keep ignoring Paul’s clear and stated “covenants”?
So what happened to this covenant of faith? As I mentioned before, it tells us in Galatians 4:21-31.
WHY NOT ACTUALLY read the passage as it puts the sword right through your untenable single covenant claim…
Gal 4:24 …which things are symbolic. For these are the two covenants: the one from Mount Sinai which gives birth to bondage, which is Hagar—
There you have the primary TWO… old AND new.