What does the Bible say about gospel worship?

Gospel worship, as outlined in Scripture, signifies a fundamental shift from Old Testament worship, which was limited to Israel and specific tribes, to a more inclusive practice that invites 'all flesh' to worship God. Isaiah 66:23 states, 'And it shall come to pass that from one new moon to another and from one Sabbath to another shall all flesh come to worship before me, saith the Lord.' This indicates that God's desire is for all nations and peoples—Jew and Gentile alike—to bring their worship to Him. It highlights the accessibility of worship under the new covenant through Christ, where believers from all walks of life are called to offer praises and spiritual sacrifices acceptable to God through Jesus. The New Testament further affirms this transformation by establishing the Lord's Day as the primary day for Christian worship, reflecting the resurrection of Christ and His continual presence among His people.