This is the Biblical poem Shirat Hayam שירת הים “Song of the Sea” from Exodus 15.
They sing parts of verses 1,11,13:
אָשִׁירָה לַה’ כִּי-גָאֹה גָּאָה
מִי כָמֹכָה בָּאֵלִם ה’ מִי כָּמֹכָה נֶאְדָּר בַּקֹּדֶשׁ
נָחִיתָ בְחַסְדְּךָ עַם-זוּ גָּאָלְתָּ
A-shi-ra la-do-nai ki ga-oh ga-ah
(I will sing to the Lord, for he has triumphed gloriously)
A-shi-ra la-do-nai ki ga-oh ga-ah
(I will sing to the Lord, for he has triumphed gloriously)
Mi-cha-mo-cha ba-elim adonai
(Who is like You, oh Lord, among the celestial)
Mi-ka-mo-cha ne-dar- ba-ko-desh
(Who is like You, majestic in holiness)
Na-chi-tah v’-chas-d’-cha am zu ga-al-ta
(In Your love, You lead the people You redeemed)
Na-chi-tah v’-chas-d’-cha am zu ga-al-ta
(In Your love, You lead the people You redeemed)
A-shi-ra, a-shi-ra, a-shi-ra…
(I will sing, I will sing, I will sing)
