21. the way of righteousness—"the way of truth" (2Pe 2:2). Christian doctrine, and "the knowledge of the Lord and Saviour."
turn—back again; so the Greek.
from the holy commandment—the Gospel which enjoins holiness; in opposition to their corruption. "Holy," not that it makes holy, but because it ought to be kept inviolate [Tittmann].
delivered—once for all; admitting no turning back.