Manna -- from the Hebrew man hu ('What is it?') -- is the mysterious food God rained down daily for Israel's forty wilderness years. In the NT it functions typologically: Jesus contrasts the manna the fathers ate and still died with the true bread from heaven that gives eternal life (John 6:31, 49). Hebrews 9:4 recalls the golden jar of manna stored in the ark of the covenant as a memorial of God's provision. In Rev 2:17 the risen Christ promises 'hidden manna' to the faithful overcomer -- a symbol of intimate, eschatological sustenance.