Note the theme of John 6 is in fact aceptance of the Holy Spirit and God's request that men actively build their own spirits to conform and duplicate it. The bread you pray for in the Lord's prayer is the Holy Spirit God is talking about in this passage. It is the sign of Jonah.
" If God does not keep even one promise,
God keeps all His promises.
"how secure is your future hope, since it is also simply a promise of God?"
I've known the Sign of Jonah. I trust Him.
Actually, my view of the millenial kingdom comes directly from the Major Prophets and Minor Prophets - although I see the Matthew passage and Revelation as supporting that same teaching.
best, ampu