Exodus 15:18 - Clarke's commentary and critical notes on the Bible

The LORD shall reign for ever and ever. The Lord shall reign for ever and ever - This is properly the grand chorus in which all the people joined. The words are expressive of God's everlasting dominion, not only in the world, but in the Church; not only under the law, but also under the Gospel; not only in time, but through eternity. The original לעלם ועד leolam vaed may be translated, for ever and onward; or, by our very expressive compound term, for Evermore, i.e. for ever and more - not only through time, but also through all duration. His dominion shall be ever the same, active and infinitely extending. With this verse the song seems to end, as with it the hemistichs or poetic lines terminate. The 20th and beginning of the 21st are in plain prose, but the latter part of the 21st is in hemistichs, as it contains the response made by Miriam and the Israelitish women at different intervals during the song. See Dr. Kennicott's arrangement of the parts at the end of this chapter.