After that introduction, Sunday matins had three sections ("nocturns"), the first with 12 psalms and 3 very short scriptural readings; the second with 3 psalms and 3 equally short patristic readings; and the third with 3 psalms and 3 short extracts from a homily. Matins of feasts of double or semidouble rank had 3 nocturns, each with 3 psalms and 3 readings. On a feast of simple rank, a "feria" or a vigil day, matins had 12 psalms and 3 readings with no division into nocturns.