Image from travelers who have lost their road, stopping and inquiring which is the right way on which they once had been, but from which they have wandered.
old paths - Idolatry and apostasy are the modern way; the worship of God the old way. Evil is not coeval with good, but a modern degeneracy from good. The forsaking of God is not, in a true sense, a “way cast up” at all (Jer 18:15; Psa 139:24; Mal 4:4).