For now I rejoice in my passion on your behalf, and I complete in my flesh the things that are lacking in the Passion of Christ, for the sake of his body, which is the Church
Other versions
King James Version
Who now rejoice in my sufferings for you, and fill up that which is behind of the afflictions of Christ in my flesh for his body's sake, which is the church:English Standard Version
Now I rejoice in my sufferings for your sake, and in my flesh I am filling up what is lacking in Christ's afflictions for the sake of his body, that is, the church,New International Version
Now I rejoice in what was suffered for you, and I fill up in my flesh what is still lacking in regard to Christ's afflictions, for the sake of his body, which is the church.