In a pastoral letter for the Solemnity of Corpus Christi, Archbishop Leo Cushley of St. Andrews & Edinburgh stressed the importance of the Sunday Mass obligation for Catholics. “Naturally, it’s good to relax and make time for these things, but our culture has largely forgotten that Sunday is a weekly holiday because of its meaning as the Christian holy day…”
Cushley went on to emphasize the importance of attending Sunday Mass. He noted that missing Mass due to extraordinary circumstance, such as an illness, is acceptable, but under normal circumstances, “attending Mass on Sunday is a solemn and binding obligation.”
“If we deliberately fail in this matter, it is a grave sin and we must go to confession before receiving communion again,” he said.