)Lord, open my lips. — And my mouth will proclaim your praise. Ant. The Lord is risen, alleluia. Psalm 100 Cry out with joy to the Lord, all the earth. Serve the Lord with gladness. Come before him, singing for joy. Ant. The Lord is… Enter Prayer

Source: Invitatory | Divine Office – Liturgy of the Hours of the Roman Catholic Church (Breviary)