
Looking at the Divine Mercy Sunday liturgy I was highly confused by the Entrance Antiphon of 4 Esdr 2: 36-37
I tracked down some interesting information and was like “Why have I never heard of this before???”
Read this: https://catholicnewslive.com/story/610621
The same chapter of 4 Esdras, verses 36 and 37, is cited in the Introit of Pentecost Tuesday. “Accipite jucunditatem gloriae vestrae, alleluia: gratias agentes Deo, alleluia: qui vos ad caelestia regna vocavit, alleluia, alleluia, alleluia. Ps. 77 Attendite, popule meus, legem meam: inclinate aurem vestram in verba oris mei. Gloria Patri. Accipite. – Receive the delight of your glory, alleluia, giving thanks to God, alleluia, Who hath called ye to the heavenly kingdoms, alleluia, alleluia, alleluia. Psalm Attend, O my people, to my law: incline your ears to the words of my mouth. Glory be. Receive.”