This psalm reads like the second stanza of the new song, the first of which was the previous psalm. The setting is the same. In this psalm's words, the King has already come and is reigning. In this psalm, He is seen in the first verses as the mighty Deliverer. In the middle verses, He is “the Lord… the King.” At the psalm's end, He is the Judge of all the world. We can apply this to Christ's victory at the cross, where He delivered us from the “wrath come… translated us into the kingdom His dear Son…” and will be “the Judge of all the earth” who always does right.
The deliverance of the people by the Lord is reviewed, likely at the temple, and saved Israelis sing this second verse of the new song. God has done “marvelous things” by bringing victory and deliverance to His people. In this song, they tell of His righteousness to all nations as they remember His mercy and truth toward the Jews. Exhortations to praise are given to nature and nations so that creation and creatures all join in praise to the Deliverer.
Celebration breaks out worldwide, and everyone everywhere recognizes the Deliverer as the King. Again, the call goes out to all the earth to rejoice and praise the Lord, the King. All the world will have seen that God delivered Israel and now reigns as King in Jerusalem on the throne of David, bringing peace and joy to the world. The sea with all its bounty, the earth and all its fullness, all created creatures, and people will be suited to the new kingdom. Worship will be authentic, and praise will be heartfelt. Everything on earth, everywhere, will be affected by the reign of our Lord Jesus Christ.
We may wonder, at times, what is going to happen on earth as we see deterioration morally, physically, and spiritually increasing in a downward trend. When we look at things in God’s eyes in the scriptures as this psalmist does, we can rest assured that God will set everything right in His time. His judgments will be righteous, and He will judge with equity. God will reveal Himself to all nations, and people will reap the benefits of the kingdom when the lion lies down with the lamb and the desert blossoms like a rose. This great Deliverer, King, and Judge is the One we love and serve today. We are privileged!