Psalm 118

The last of the Passover "Hallel" psalms, most likely what Jesus and the disciples sang after the Last Supper (Matthew 26:30). It's full of rescue: pushed hard and falling, but the LORD helped. Then come the lines the crowds shouted on Palm Sunday, "Hosanna... Blessed is he who comes," and the rejected stone that became the cornerstone, which Jesus applied to Himself (Matthew 21:42). "This is the day that the LORD has made," in context, is the day of that rescue.

"The stone the builders rejected has become the cornerstone." (Psalm 118:22)

Versions/Hebrew: "O LORD, save us, we pray" in 118:25 is hoshi'ah na [3467, 4994], which comes into Greek and English as "Hosanna" (Matthew 21:9).