3. behaviour—"deportment."
as becometh holiness—"as becometh women consecrated to God" [Wahl]: being by our Christian calling priestesses unto God (Eph 5:3; 1Ti 2:10). "Observant of sacred decorum" [Bengel].
not false accusers—not slanderers: a besetting sin of some elderly women.
given to much wine—the besetting sin of the Cretans (Tit 1:12). Literally, "enslaved to much wine." Addiction to wine is slavery (Ro 6:16; 2Pe 2:19).
teachers—in private: not in public (1Co 14:34; 1Ti 2:11, 12); influencing for good the younger women by precept and example.