What does the Bible say about the river of God in Psalm 46?

In Psalm 46:4-5, the river is portrayed as a metaphor for God's presence among His people, bringing gladness to the city of God, which represents the Church. Henry Sant notes that the river signifies not just a physical supply of water but also the spiritual sustenance provided by God Himself. Throughout Scripture, this image of water is often used to illustrate the life-giving and refreshing nature of God’s grace, culminating in the ultimate fulfillment of that grace in Christ and the Holy Spirit.