The COGC worships on Sunday as the day of Christ's resurrection and the New Testament pattern for the Christian assembly. The Mosaic Sabbath commandment in its specific form is understood as part of the Mosaic covenant given to Israel, fulfilled and set aside in Christ. Christians observe the Lord's Day — Sunday — as the appropriate day for communal worship, following the pattern of the early church (Acts 20:7, 1 Corinthians 16:2).

The COGC does not impose Sabbatarian restrictions on Sunday activities. The focus is on faithful participation in the Lord's Day assembly — the preaching of the Word, the breaking of bread, and community fellowship — rather than on legal regulations about what may or may not be done on Sunday. This approach reflects the COGC's commitment to New Testament simplicity over Mosaic legal observance.

Some in the COGC tradition have explored the question of whether the Sabbath principle carries forward in some form into the new covenant, but the denomination's primary pattern is Sunday worship without Sabbatarian restrictions. The emphasis is on gathering for worship and fellowship on the first day of the week, consistent with the apostolic practice recorded in Acts and Paul's letters.