John 6:30 WEB

²⁸  They said therefore to him, 'What must we do, that we may work the works of God?'

²⁹  Jesus answered them, 'This is the work of God, that you believe in him whom he has sent.'

³⁰  They said therefore to him, 'What then do you do for a sign, that we may see, and believe you? What work do you do?

³¹  Our fathers ate the manna in the wilderness. As it is written, 'He gave them bread out of heaven{Greek and Hebrew use the same word for 'heaven', 'the heavens', 'the sky', and 'the air'.} to eat.''

³²  Jesus therefore said to them, 'Most assuredly, I tell you, it wasn't Moses who gave you the bread out of heaven, but my Father gives you the true bread out of heaven.