A.T. Robertson Commentary John 6:58

"This is the bread which came down out of heaven: not as the fathers ate, and died; he that eateth this bread shall live for ever." — John 6:58 (ASV)

This is the bread (ουτος εστιν ο αρτος). Summary and final explanation of the true manna (from verse 32 on) as being Jesus Christ himself.