John Gill Commentary Psalms 106:12

"Then believed they his words; They sang his praise." — Psalms 106:12 (ASV)

Then believed they his words And not till then; for this is observed, not to their commendation, but to show the slowness of their hearts to believe; they believed on sight, but not before, as Thomas did; whereas, "blessed are they that have not seen, and yet have believed", (John 20:29) . When they saw the Egyptians dead on the sea shore, then they believed the Lord, and his servant Moses; what he said by his servant Moses, that he would save them from the Egyptians, whom they should see no more, that is, alive, (Exodus 14:13Exodus 14:14Exodus 14:31) .

The Targum is, ``and they believed in the name of his Word.''

They sang his praise ; Moses with the men, and Miriam with the women; the song is recorded (Exodus 15:1–22) and thus when the people of God have got the victory over the antichristian beast, they will stand on a sea of glass and sing the song of Moses and of the Lamb, (Revelation 15:2Revelation 15:3) .