God has granted life-giving repentance to the Gentiles, too. (Acts 11:18)
That message penetrated the minds of the first Christians during the lifetime of the original Apostles. The Messiah had come not just for the kosher-keeping Jews, but for everyone.
Apparently, St. Peter had as hard a head about this as he did about everything. A voice from heaven declared, regarding non-kosher foods: “Get up, Peter. Slaughter, and eat.” “Certainly not, sir. Nothing profane or unclean has ever entered my mouth.” “What God has made clean, you are not to call profane.”
You would think that a voice from heaven making this point once would suffice. But, as we read, in St. Peter’s case, it required three repetitions. Just like how he denied Christ three times, and then professed his love for Christ three times, after Jesus rose from the dead.
Anyway: We have a universal mission. God has revealed His love in Christ, and the message is meant for everyone. Every Christian must serve the apostolate, and our apostolate must, by God’s grace, reach everyone.
What do we have to do? Stay close to Christ through the sacraments, prayer, and the Scriptures. Love God and our neighbors. Hold the faith with clear consciences. Communicate the Gospel as best we can.
We can do these things, peacefully, until we die. God has a long-term plan for the future of His Church, which we don’t need to know. We just need to serve the grassroots apostolate of Christian love right here and now.