The article offers an analysis of ethical concepts in Russian religious-didactic literature of the 17^th century. The main sources are alphabets published in Moscow. There were two alphabets printed by Vasily Burtsov, and an alphabet by Karion Istomin, as well as “Azbuka s oratsiey” (Alphabet with Didactics), and the manuscript “Alfavititsy didaskala” (Small Alphabet of a Teacher). These alphabets can be considered as religious-didactic literature because in addition to grammar, these manuals included the narration “On the Letters” by Chernorizets Hrabar (Hrabar, the Black Robe Wearer), extensive religious-anthropological reasoning, prayers, the Credo, Decalogue (in the Alphabet by Karion Istomin only), the Beatitudes, and other texts which were presented in Catholic catechisms of that time, as well as in the “Profession of Faith” by Peter Mogila (he used the Catholic catechism in his “Profession”). The influence of Reformation ideas is obvious, too. Several works by Karion Istomin, the alphabet primarily, were written and illustrated under the influence of “Orbis sensualium pictus” by John Amos Comenius, the last bishop of the Unity of Brethen (Bohemian or Moravian Church). The content of these manuals (including visual content) allows us to conclude that their mass publication was induced by the disciplinary revolution that began after the end of the Smuta (the Time of Troubles) in Russia, which is associated with the House of the Romanovs coming to power. The creation of a new tsardom was impossible without new people whose education was based on religious ideas and regulations. Ethical concepts in these books were almost inseparable from religious regulations, which is explained by the doctrinal aims of primary education in Russia of the 17^th century.