Juan 4:33-34

The disciples continued to think only on the level of physical food, as the woman had thought only of physical water (John 4:15). They were all unspiritual in their thinking. Jesus responded that what satisfied Him more than physical food was the spiritual nourishment that came from doing the Father’s will and advancing His work (cf. Deuteronomy 8:3; Matthew 4:4; Luke 4:4; John 5:36; John 6:38). That mission involved bringing eternal life to people (cf. John 20:21).

"The creative will of God, realized in obedience, sustains life." [Note: Barrett, p. 241.]