Have you ever observed the extent to which people appear not to notice that so much of what the church is recorded to have gone through in Acts and the Epistles (I'm thinking of the debate on whether Gentiles should be part of the Church, and the discussion on eating meat offered to idols, or other unclean food) would not have been necessary if Jesus had actually said some of the things the Gospels record? We know the Gospels post-date the Epistles in terms of time of composition, so were these passages in Jesus' teaching retrofitted? Or were they recollected? Were the apostles not listening attentively when Jesus told them to baptize all nations, and not to worry about whether food was clean or unclean?
Perhaps that's it after all. There is ample evidence before us even now that the Church is slow to put the teachings of Jesus to work.
Tobias Haller BSG