There is always a sticking point. A point where the teaching pushes us beyond where we were willing to go. In the text it's around the source of life as expressed in Jesus as the bread of life. For us it might be politics, ethics, or authority. Discipleship to Jesus, and God's way, always and forever will continually push us to face our sticking point and to surrender our wanting to be the judges of rightness over to God.
So roll up your sleeves, put your mind in gear, be totally ready to receive the gift that’s coming when Jesus arrives. Don’t lazily slip back into those old grooves of evil, doing just what you feel like doing. You didn’t know any better then; you do now. As obedient children, let yourselves be pulled into a way of life shaped by God’s life, a life energetic and blazing with holiness. God said, “I am holy; you be holy. [1 Peter 1:13-16]