Verse 13. "For he is good" - This was either the whole of the song, or the burden of each verse. The Hebrew is very short:- wdsj µlw[l yk bwf yk Ki tob, ki leolam chasdo.
For he is good; for his mercy is endless.
Verse 14. "The priests could not stand" - What a proof of the being of God, and of the Divine presence! What must those holy men have felt at this time!