Charles Buck

Although it was in primitive times and differently called the Lord's day or Sunday, yet it was never denominated the Sabbath; a name constantly appropriate to Saturday, or the Seventh day both by sacred and ecclesiastical writers.

There is also a perfection of degrees, by which a person performs all the commands of God, with the full exertion of all his powers, without the least defect. This is what the law of God requires, but what the saints cannot attain to in this life.