I. A command to praise the Lord for His restorative mercies (vv. 1–6); II. A command to praise the Lord for the joy He finds in His people (vv. 7–11); III. A command to praise the Lord for His Word (vv. 12–20). These are reminders of who He is and what He does for his people. Communion is a reminder of who He is and what He does for us.