Complete Commentary on the Whole Bible, by Matthew Henry, at sacred-texts.com
Psalms Chapter 117
All people called upon to praise God.
Here is a solemn call to all nations to praise the Lord, and proper matter for that praise is suggested. We are soon weary of well-doing, if we keep not up the pious and devout affections with which the spiritual sacrifice of praise ought to be kindled and kept burning. This is a gospel psalm. The apostle, Rom 15:11, quotes it as a proof that the gospel was to be preached to the Gentile nations, and that it would be entertained by them. For many ages, in Judah only was God known, and his name praised; this call was not then given to any Gentiles. But the gospel of Christ is ordered to be preached to all nations, and by him those that were afar off are made nigh. We are among the persons to whom the Holy Spirit here speaks, whom he calls upon to join his ancient people in praising the Lord. Grace has thus abounded to millions of perishing sinners. Let us then listen to the offers of the grace of God, and pray for that time when all nations of the earth shall show forth his praises. And let us bless God for the unsearchable riches of gospel grace.