Christianity is a must, but I do not believe true faith decided by labels. Faith is a journey and so the Church has to be a journey too. I can’t imagine how the Church would be in the future, but most likely protestanism will melt into union with the mother church. They have no choice, so haven’t we. It’s God’s will.
No new religion can come to the whole truth exept christianity. Judaism would have to confess Jesus is the messiah, so Moslem people has to abandon their Quran that deny Jesus’s crucifixion. If these are the case-- they might as well melt into Christianity or not, but-- surely will be saved too.
Isaiah 45:23
"I have sworn by Myself,
The word has gone forth from My mouth in righteousness
And will not turn back,
That to Me every knee will bow, every tongue will swear allegiance.
Romans 14:11
For it is written, “AS I LIVE, SAYS THE LORD, EVERY KNEE SHALL BOW TO ME,
AND EVERY TONGUE SHALL GIVE PRAISE TO GOD.”
Philippians 2:10
so that at the name of Jesus EVERY KNEE WILL BOW, of those who are in heaven and on earth and under the earth,
