Psalm 136
Twenty-six lines, each answered by the same refrain: "His loving devotion endures forever." It's built for call and response. It covers creation, the Exodus, and conquest, including the slaughter of kings, which the psalm also calls chesed toward Israel. That's hard for modern ears, and I note it rather than smooth it over. Near the end it comes down to us: He remembered us in our low estate, and He feeds every creature.
"He remembered us in our low estate His loving devotion endures forever." (Psalm 136:23)