Adam Clarke on John 6:60

Many therefore of his disciples - So it appears that he had many more than the twelve, who constantly accompanied him.

This is a hard saying; who can hear it? - Who can digest such doctrine as this? It is intolerable: it is impracticable. There is a similar saving in Euripides, to the σκληρος λογος of the evangelist. Ποτερα θελεις σοι μαλθακα ψευδη λεγω, η σκληρ' αληθη, φραζε; Tell me whether thou wouldst that I should speak unto thee, a Soft Lie, or the Harsh Truth? The wicked word of a lying world is in general better received than the holy word of the God of truth!