Reformed Baptists hold a nuanced position on religious holidays and festivals, influenced by their commitment to the regulative principle of worship. Many congregations observe Christmas and Easter as commemorations of Christ's incarnation and resurrection, though without viewing these days as divinely mandated. Some congregations deliberately avoid special observances of Christmas and Easter, maintaining that no holy day other than the Lord's Day is commanded in the New Testament.

The 1689 Confession does not mandate the observation of Christmas or Easter, in contrast to the Old Testament observance of Passover and other Jewish feasts. Reformed Baptist ecclesiology teaches that the apostles did not institute new festivals or holy days for the church. Christmas and Easter are human traditions, neither commanded nor forbidden by Scripture. Many congregations take a middle position: they commemorate these significant historical events but do not load them with sacramental or ceremonial significance.

The diversity on this issue reflects Reformed Baptist commitments to both biblical authority and congregational liberty. While some Reformed Baptist churches enthusiastically celebrate Christmas with nativity scenes and special services, others deliberately preach through Scripture on these days or treat them as ordinary days of worship. The overarching principle is that no tradition may be imposed on conscience, and worship practices must be grounded in Scripture.