Therefore do not let anyone judge you by what you eat or drink, or with regard to a religious festival, a New Moon celebration or a Sabbath day. 17 These are a shadow of the things that were to come; the reality, however, is found in Christ. Colossians 2:16-17If you think "the law" has passed away into oblivion, consider how it is so plainly declared that the Feast of Tabernacles (Sukkot) has yet to be fulfilled - and how it relates to the Gentile nations!
Then the survivors from all the nations that have attacked Jerusalem will go up year after year to worship the King, the LORD Almighty, and to celebrate the Feast of Tabernacles. Zechariah 14:16In fact, I believe none of the holy days are yet passed away, though most if not all have seen some fulfillment in Christ already.
"Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them. 18 I tell you the truth, until heaven and earth disappear, not the smallest letter, not the least stroke of a pen, will by any means disappear from the Law until everything is accomplished. 19 Anyone who breaks one of the least of these commandments and teaches others to do the same will be called least in the kingdom of heaven, but whoever practices and teaches these commands will be called great in the kingdom of heaven. Matthew 5:17-19Based upon what has been fulfilled in the past, a wise and diligent student can learn much about what is yet to come. This has been my assumption in approaching the matter of the Holy Day calendar - what I believe is the Almighty's schedule book of appointments with mankind.