Now the promises were made to Abraham and to his offspring. It does not say, “And to offsprings,” referring to many; but, referring to one, “And to your offspring,” which is Christ.
Now I rejoice in my sufferings for your sake, and in my flesh I complete what is lacking in Christ's afflictions for the sake of his body, that is, the church,
and not holding fast to the Head, from whom the whole body, nourished and knit together through its joints and ligaments, grows with a growth that is from God.