1. And thou shalt say in that day. Isaiah now exhorts all the godly to thanksgiving. Yet the exhortation has also this object, that the promise may be more fully believed; for he seals it with that exhortation, that they may be convinced that it is certain, and may not think that they are deluded…

2. Behold, God is my salvation. Though it is proper to behold by faith the salvation of God in the midst of our afflictions, yet here Isaiah speaks of knowledge derived from experience; for he lays down a form of a joyful song, in which God shows by outward signs that he is pacified towards his…

3. You shall draw waters with joy. In this verse he confirms what we have already noticed, that this chapter may be regarded as a seal to confirm the promise which he gave about the redemption of his people.

4. And in that day shall ye say. He now exhorts them not only to sing praise and give thanks to God individually, but to excite others to do the same. As he had formerly said, Many people shall go and say, Come ye, and let us go up into the mountain of the Lord, that is, exciting each other by…

5. Sing unto the Lord He continues his exhortation, showing what is the feeling from which this thanksgiving ought to proceed; for he shows that it is our duty to proclaim the goodness of God to every nation.

6. Shout and sing. He again exhorts the godly to rejoice in the Lord, at the same time reminding them what is the nature of true joy, and on what it is founded. We have no other happiness than to have God dwelling in the midst of us.