“…let us ourselves labor to work a good struggle and preserve the right faith. Let us always abide in God’s commandments and let us learn from them. Let us render to God’s Church due glory: We will pray for forgiveness of sins [in it] with fear, and not only refrain from idle talk, but also cast out evil thoughts from our hearts, and penetrate the reading and hymns. “
(St Clement of Ohrid, excerpts from his writings in orthochristian.com)