In the 6th chapter from Saint John, we have a remarkable summary of the wide range of Jesus’ ministry. He teaches the multitudes; he feeds the multitude with five barley loaves and two fish. He walks on water and thus becomes known to the disciples as one who casts out fear. He describes himself as the Bread of Life. He identifies his own purposes with those of the Father. He suggests that his own flesh and blood will become the source of life for others.
This is very heavy stuff.
"As a result of this, many of his disciples returned to their former way of life." They no longer accompanied him.These so-called disciples were not those whom Jesus himself had invited to walk with him. Instead they were the curious, not the committed, who had entertained notions of following Jesus, but, upon finding out what Jesus was really all about, they left.