It makes sense to me this way - The two 'folds' are Gentiles and Jews, but there is only one flock > believers, Christians.
God is not partial:
Acts 10: 44 While Peter was speaking, the Holy Spirit came on all who were hearing his words. 45 The Jewish followers who had come along with Peter were surprised and wondered because the gift of the Holy Spirit was also given to the people who were not Jews. 46 They heard them speak in special sounds and give thanks to God. Then Peter said, 47 "Will anyone say that these people may not be baptized? They have received the Holy Spirit just as we have."
Romans 2: 21 But now God has made another way to make men right with Himself. It is not by the Law. The Law and the early preachers tell about it. 22 Men become right with God by putting their trust in Jesus Christ. God will accept men if they come this way. All men are the same to God. 23 For all men have sinned and have missed the shining-greatness of God. 24 Anyone can be made right with God by the free gift of His lovingfavor. It is Jesus Christ Who bought them with His blood and made them free from their sins.
Epesians 6: 9 Owners, do the right thing for those who work for you. Stop saying that you are going to be hard on them. Remember that your Owner and their Owner is in heaven. God does not respect one person more than another.
IMO the wall is 'sin' which separates sinners from God, not one flock from another - Matthew 27:51 At once the curtain in the house of God was torn in two from top to bottom. The earth shook and the rocks fell apart.
So as our High Priest and the ONE door into the Kingdom of God, Christ opened the way to reconcile sinners to God, effectively ripping down the 'curtain' that divided us from Him - Hebrews 10: 19 Christian brothers, now we know we can go into the Holiest Place of All because the blood of Jesus was given. 20 We now come to God by the new and living way. Christ made this way for us. He opened the curtain, which was His own body.
We can't ignore that the Bible doesn't ever state '2 hopes' and it takes some scripture wrangling to make it appear so - as brought out by the other good posts. It sounds so ridiculous now,(screwy, screwy fer sure!) but I fell for it too.... Yes, ONE God, ONE Way, ONE hope. This one hope issued TO all mankind FROM heaven(thus 'a heavenly hope') - it is to be saved by our faith and God's grace through Christ. Christ will choose who will rule with him and in what capacity. It's presumptuous to think that one Christian over another Christian is bound for more or less glory or to delegate positions in heaven and on earth - but all religions do it and it's arrogant, self-righteous. Even the one religion that is such a loving brotherhood and has no clergy - lies-barf-lies- does the opposite from what it says by giving unearned respect and adoration to DO's, CO's, PO's, elders, and especially anyone from Bethel or the GB. "Do what they say(selflessly love God and neighbor), but not what they do"(walk in pride and partiality).
That makes sense doesn't it?
Searching and digging with you, WB