Seventh day adherents might just ponder that they resolutely hold to the day which was a main mark of the Old Covenant, identifying God's Old Covenant people who placed their trust in the sufficiency of that particular covenant to save them. The Christian, on the other hand, prefers to be associated with the Day of the Lord which identifies them as followers of Jesus Christ whom they look to as Saviour, Lord and Master - and who is fully sufficient for salvation.
Despite all of the above, if Christians prefer to assemble on the seventh day (Saturday) they do no wrong, but the danger is in the legalism and judgmentalism of other Christians (to say nothing of the distortions of church history) which so often seems to accompany seventh-day observance.
Robin A. Brace
1998. Updated: 2007...."
http://www.ukapologetics.net/sundayworship.htm
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