direct
grows out of · not by bread alone
Every answer Jesus gives in the desert comes from Deuteronomy's reflection on the manna years, including 'man shall not live by bread alone'.
direct
points forward to · the true bread
In John 6 the crowd asks for manna again, and Jesus answers that the bread from heaven was never ultimately about food: 'I am the bread of life.'
indirect
points forward to · bread in a desert place
A crowd in a wilderness fed to the full with bread they did not grow — the sign is built out of Exodus 16.