Bravo - taking things out of context and across covenants. You cite and Old Covenant dictate. Perhaps you didn't notice how, in the New Covenant, such that continued circumcision as a way to "be obedient" were among those who were chastised for "falling from Grace" for trying to prove their worthiness in the face of the Savior's sacrifice. The New Covenant was a game changer.
Eph 2:12 that at that time you were without Christ, being aliens from the commonwealth of Israel and strangers from the covenants of promise, having no hope and without God in the world. 13 But now in Christ Jesus you who once were far off have been brought near by the blood of Christ.
Speaking to the “former” gentiles, Paul stands in opposition and says that it is you who are taking his words out of context. Do you even know what these covenants of promise are that we are now heirs to through Messiah? Paul doesn't say we are brought into something new, he states that we are now brought near to that which already existed.
And of course let us not forget, the “new” covenant is not really new, it is simply “renewed” as the actual covenant does not change, only the location from stone to hearts of flesh is made. This covenant also states that it is for the house of Judah and the house of Israel(the scattered sheep) and it is when the two are brought back together that the covenant will be fulfilled.
Religious talking points will be the demise of many just as political talking points become the eventual downfall of many because they know not that which they purport to speak of.