The Sunday of Orthodoxy is the first Sunday of Great Lent. The dominant theme of this Sunday since 843 has been that of the victory of the icons. In that year the iconoclastic controversy, which had raged on and off since 726, was finally laid to rest, and icons and their veneration were restored on the first Sunday in Lent. Ever since, this Sunday has been commemorated as the “Triumph of Orthodoxy.”
Kontakion (4th Tone) The undepictable Word of the Father became depictable when He took flesh of you, O Theotokos; and when He had restored the defiled image to its ancient state, He suffused it with divine beauty. As for us, confessing our salvation, we record it in deed and word.