נָ֥חָה שָׁקְטָ֖ה כָּל־הָאָ֑רֶץ פָּצְח֖וּ רִנָּֽה׃
이제는 온 땅이 평안하고 정온하니 무리가 소리질러 노래하는도다
Rashi
and opened their bones Heb. פִצֵּחוּ. They opened [them] to take out the marrow. Cf. (Isa.14:7) “They opened (פָצְחוּ) in song” -they opened their mouth in song.