Verse 11 begins with ‘Therefore,’ and it is a good idea to look at the preceding words to know what the ‘Therefore’ is there for. Paul intends to reinforce the point that the predestination of the elect to salvation by grace, is also meant for his gentile readers and hearers. We all are now citizens of “the commonwealth of Israel,” and thus recipients of “the covenants of promise.” (v. 12) There have been various administrations of the covenant of promise, summarized in the old and new, but one promise of grace throughout. It means that we all also have hope for the future and his presence in our now in this world. All of this is because we “have been brought near by the blood of Christ.” (v. 13) Take away his bloody substitutionary sacrifice and offering for sin, once and for all, and we all remain strangers.