Sean Lucas of Covenant Theological Seminary has posted an excellent article on his blog on the essential incompatibility of Sola Scriptura and the Regulative Principle with the practice of observing invented Holy Days in the worship of church.
Lucas notes in his article, “While I am aware that some would make a biblical argument for using the church calendar based on the OT development of sacrifical feast days (an argument that is not convincing to me), I would suggest that what we have for our place in the redemptive, biblical drama is actually a rhythym of 52 feasts days a year–the Lord’s Day in which Word, Sacraments, and prayer constitute the heart of the church’s “calendar.” “
His comment regarding the specious argument that the commanded Old Testament holy days provide the pretext for the invention of New Testament Holy Days reminded me of the comments of several Puritan divines, such as Thomas Watson, who dealt with the same argument as it was advanced by Roman Catholics and Anglicans in their own day. Watson answered:
“The ceremonies of the law, which God himself ordained, are now abrogated, and out of date. Christ the substance being come, the shadows fly away; and therefore the apostle calls the legal ceremonies carnal rites. Heb 9: 10. If we may not use those Jewish ceremonies which God once appointed, then not those which he never appointed.”