CCC 2192
Life in Christ›SECTION TWO THE TEN COMMANDMENTS›CHAPTER ONE YOU SHALL LOVE THE LORD YOUR GOD WITH ALL YOUR HEART, AND WITH ALL YOUR SOUL, AND WITH ALL YOUR MIND›IN BRIEF
"Sunday . . . is to be observed as the foremost holy day of obligation in the universal Church" ( CIC, can. 1246 # 1). "On Sundays and other holy days of obligation the faithful are bound to participate in the Mass" ( CIC, can. 1247).