Matthew Henry on Psalms 96:1-9

When Christ finished his work on earth, and was received into his glory in heaven, the church began to sing a new song unto him, and to bless his name. His apostles and evangelists showed forth his salvation among the heathen, his wonders among all people. All the earth is here summoned to worship the Lord. We must worship him in the beauty of holiness, as God in Christ, reconciling the world unto himself. Glorious things are said of him, both as motives to praise and matter of praise.