Charles Spurgeon Commentary John 6:30-31

"They said therefore unto him, What then doest thou for a sign, that we may see, and believe thee? what workest thou? Our fathers ate the manna in the wilderness; as it is written, He gave them bread out of heaven to eat." — John 6:30-31 (ASV)

They said therefore unto him, What sign shewest thou then, that we may see, and believe thee? what dost thou work? Our fathers did eat manna in the desert; as it is written, He gave them bread from heaven to eat.

See how they returned to the old subject again, bread to eat.

The Lord Jesus Christ may point them to something higher and better; but their carnal minds always return to that congenial topic, something to eat. Their stomach was lord of their heart.

They said therefore to him, What sign do you show then, that we may see, and believe you? What do you work? Our fathers did eat manna in the desert; as it is written, He gave them bread from heaven to eat.

Do you see the drift of their talk? They are still seeking the loaves and fishes; and, therefore, whatever Christ may say, they turn the discourse that way. If they can get from Christ something to eat, they will believe in him; what groveling, earth-bound creatures they were!