In the Homilies of Saint Jerome (a 4th-5th Century theologian) it is demonstrated that in his times, Sabbath observance (Saturday) was wholly expected. Homily 21 on Psalm 92 we read, “The Ninety-first Psalm is inscribe with the title: ‘A psalm; a song for the Sabbath day.’ There could be no Sabbath day without six preceding […]