It is only in the Late Archaic and Early Classical time that the phthonos idea becomes an oppressive menace, a source—or expression—of religious anxiety. Such it is in Solon, in Aeschylus, above all in Herodotus.
Dodds argues that divine phthonos transforms from an archaic popular superstition into a defining source of religious anxiety in Late Archaic and Early Classical thought, marking a shift from shame-culture to anxious piety.
, The Greeks and the Irrational, 1951thesis