At Mass we stand, then sit, then kneel — and change again, more than a dozen times in a single liturgy. Where does this choreography of the body come from, and what does each posture actually mean?
Why Catholics Kneel, Stand, and Sit: The Sacred Postures of the Mass
The General Instruction of the Roman Missal (no. 42–43) assigns each posture to specific moments: standing for the Gospel, Creed, and the "Holy, Holy, Holy"; sitting for the readings and homily; kneeling after the Sanctus through the Eucharistic Prayer. Dr. Pitre traces each posture back through Scripture and the early Church. Standing appears at the Tabernacle of Moses (Exodus 33:7-10) and in the heavenly liturgy of Revelation 4. Kneeling marks Solomon's dedication of the Temple (1 Kings 8:54) and the summons of Psalm 95, "let us kneel before the LORD, our Maker." Sitting recalls the synagogue where Jesus "sat down" to teach (Luke 4:20) and the seating disputes of James 2. The session also asks a striking historical question: why did the Council of Nicaea (325 AD) forbid kneeling on Sundays and during Pentecost?
Key passages & sources examined: Exodus 33:7-10; 1 Kings 8:54; Psalm 95:1-8; Matthew 23:1-6; Luke 4:20; James 2:1-3; Revelation 4:2-10; GIRM 42–43; Philo, Special Laws 2.62; Tertullian, On Prayer 23; Council of Nicaea (325 AD), Canon 20; Apostolic Constitutions; Augustine; Gregory of Nazianzus; Origen, On Prayer 31.3
Why do Catholics kneel at Mass? Kneeling is a posture of adoration, humility, and supplication. The study guide roots it in Solomon kneeling "with hands outstretched" at the Temple altar (1 Kings 8:54) and Psalm 95's call to "kneel before the LORD." Dr. Pitre unpacks its full mystical meaning in the session.
When are you supposed to stand, sit, and kneel at Mass? The Roman Missal assigns standing to the entrance, Gospel, and Creed; sitting to the readings and homily; and kneeling after the Sanctus. The video walks through each moment.
Why did the early Church forbid kneeling on Sundays? The Council of Nicaea (and a common practice for centuries after) directed the faithful to pray standing on Sundays and during Easter — a posture tied to the Resurrection. What that signified is examined in the session.
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Once logged in, you can access everything by going to 'Membership' in the main menu bar of our website, then 'Mass Readings Explained' and then pick one of the options there. The calendar view works well for finding those Mass Readings that are in the near future and The Mass Explained will take you to videos in that series.
I love getting the mass readings/readings explained, every week. Dr Brandt Petrie it’s truly amazing in his knowledge of the Old Testament and the New Testament.!
I’ve subscribed for many years and have shared Brant Pitre’s excellent work as gifts to friends and colleagues around the world. Keep up the good work. Team!
