This is the Bible's only use of the term Spiritual Food; and these verses clearly tie "Spiritual Food" to the Christ.
[They reference the 40 years the ancient Jews wandered in the wilderness on the nation's way to the promised land, so the wicked among them would die off and never see God's promise.] (
Deu 8:3 of 1-11) Jesus said we need to eat his flesh and
drink his blood; (
John 6:51-54 of 45-59) meaning we should consume and live on his teachings. So, the only reliable source of Spiritual Food are the words of Jesus Christ. (
John 6:63;
Heb 4:12 of 7-16) Any person or group who claims to speak for Christ or even God by asserting they are producing "new Spiritual Food" would thus seem liars.