But what if a church sang only the Old Testament Psalms. Pastor, theologian, and hymn writer, Isaac Watts grew up in a church that believed only the Psalms should be sung in the services, no newer hymns. But he argued that by so doing they were missing a great deal of New Testament truth. With the church’s permission, he began writing some hymns for the congregation, eventually producing about six hundred of them.
So far, so good. But when a hymn writer takes an Old Testament text and gives it a New Testament meaning, that involves more than merely explaining the initial passage of Scripture and drawing life principles from it. It requires expressing an opinion about how the New Testament relates to the passage. Does it really say what you’re trying to make it say?
Watt’s hymn Jesus Shall Reign is a case in point. He used the latter part of Psalm 72, and turned it into a hymn about Jesus. The psalm is a prayer of David for his son, Solomon, when He ascended to the throne. Watts felt this could also be a picture of the spread of the gospel today. Perhaps it can, in part.
— The Church of England (@churchofengland) November 25, 2017