John Wesley on Isaiah 66:23

And, &c. - In the gospel - church there shall be as constant and settled a course of worship (though of another nature) as ever was in the Jewish church: Christians are not bound to keep the Jewish sabbaths or new - moons. But New Testament worship is expressed by Old Testament phrases. The Jews were only obliged to appear three times in a year at Jerusalem, but (saith the prophet) the gospel - church shall worship God from one sabbath to another.