Your fathers by nature, or in respect of unbelief, did eat manna in the wilderness, and they are naturally dead; (manna would not always preserve their natural life); and those of them who were unbelievers, are also dead eternally; their eating of manna, which was a type of me, without believing in me, would not save them.
Related Commentaries of John 6:49
John 6:49
49 Your fathers did eat manna in the wilderness, and are dead.