John Lightfoot on John 6:39

[Should raise it up again at the last day.] So also verse 40 and 44, the emphasis lies in the last day.

I. They looked (as hath been already said) for the resurrection of the dead at the coming of the Messiah. Take one instance: "R. Jeremiah said, 'When I die, bury me in my shirt, and with my shoes on, &c.; that when Messiah comes I may be ready dressed to meet him.'"

Apply here the words of our Saviour: "Ye look for the resurrection when Messiah comes; and since ye seek a sign of me, perhaps ye have it in your minds that I should raise some from the dead. Let this suffice, that whoever comes to me and believes in me shall be raised up at the last day."

II. This was the opinion of that nation concerning the generation in the wilderness. "The generation in the wilderness have no part in the world to come, neither shall they stand in judgment."

Now as to this generation in the wilderness, there had been some discourse before, verse 31; viz. of those that had eaten manna in the wilderness. "But that manna did not so feed them unto eternal life (as you yourselves confess) as that they shall live again, and have any part in the world to come. But I, the true bread from heaven, do feed those that eat of me to eternal life; and such as do eat of me, i.e. that believe in me, I will raise them up at the last day, so that they shall have part in the world to come."