Parallel
Psalms 136:9
Swete's Septuagint · Berean Standard Bible
μακάριος ὃς κρατήσει καὶ ἐδαφιεῖ τὰ νήπιά σου πρὸς τὴν πέτραν,
137:9
Blessed is he who seizes your infants and dashes them against the rocks.