פּירוש אויף ישעיהו 44:23

burst out An expression of opening the mouth.

Sing, 0 ye heavens, etc. This is a figurative expression ; it means: great rejoicing will be through Israel, for through the redemption of Israel the glory of God will be revealed to the whole world.

“Sing, O heavens” [44:23]. The heavens will sing when God will redeem Israel from the exile in the days of the Messiah. The earth will sing and praise God that the Holy One was very helpful in redeeming them and also the mountains will rejoice and the forest with its trees will sing that God has redeemed Jacob. The Holy One will receive honor from Israel and from the nations who will say that the Holy One performed miracles for Israel. Amen.