When the Bible talks about "feeding" it is generally referring to instruction in spiritual things -- teaching people the true concepts that can lead them to do what is good.

In Revelation 7:17, this signifies to teach. (Arcana Coelestia 5147, Apocalypse Revealed 383)

(Referencat: Apocalypse Explained 9, 482; Apocalypse Revealed 547; Arcana Coelestia 5201, 10609)