When Holy Scripture says, ‘Serve the Lord’, it means that our whole life should be spent in continuous service of God. But we, the disciples of Jesus, cannot serve the Lord without assembling in His Name in order to hear the Word of God, to celebrate the Lord's Supper, and to offer prayer, praise and thanksgiving. The service of God which involves our whole life, has as its living centre the service of worship by the assembled congregation. The subject of this lecture is Divine Service or the worship of the congregation assembled in the Name of Jesus Christ.