What does Psalms Chapter 135 say, and which statements belong to its speaker?

Confitemini Domino is the incipit; the heading calls praise for wonderful works. Alleluia precedes praise of the good Lord, God of gods and Lord of lords, with enduring mercy repeated in every one of the twenty-seven verses. The separate edition note interprets the thrice repeated invitation as professing one God in three distinct Persons, Father, Son and Holy Ghost.

The Lord alone does great wonders, made heavens in understanding, established earth above waters and made great lights: sun ruling day, moon and stars ruling night. Each declaration repeats enduring mercy; celestial spheres and continents are not inserted.

He smote Egypt in firstborn, brought Israel out with mighty hand and stretched arm, divided Red Sea into parts, brought Israel through and overthrew Pharao and host there. He led desert people, smote great and slew strong kings, naming Sehon of Amorrhites and Og of Basan. He gave their land as inheritance to servant Israel. Chariots and a particular seabed route are not described.

He remembered us in affliction and redeemed us from enemies, gives food to all flesh, and the speakers call glory to God of heaven and again Lord of lords. Every statement retains the enduring-mercy refrain. No particular festival, choir, observed audience response or daily feeding schedule is added.