This is Year A in the Sunday Liturgical Calendar.
For the benefit of those who may not be familiar with the liturgical year and what I mean by Year A, Year B, and Year C, I offer a brief explanation here. Sunday Mass readings are in a three year cycle which means when you hear a particular reading you will not hear that reading again for three years unless it is a special feast which has the same reading every year. For convenience we normally call this cycle Year A, Year B and Year C.
Our liturgical year has seasons. The liturgical year commences with the Season of Advent when you see the priest wearing violent vestments. Then during the Christmas Season you see the priest wearing white vestments. Next, Ordinary Time (34 weeks) begins when the priest wears green vestments. Ordinary Time is interrupted by Lent when the priest wears violent vestments and followed by Easter when the priest wears white vestments. Ordinary Time (green vestments) resumes again following the Easter Season and continues until Advent when the liturgical year begins again.
For searches, biblical books are abbreviated to the
first letters of the book, Matt not Mt and Gen not Gn. For chapters
and verses try 24:12 for chapter 24 verse 12.