I will say this. God established His own Calendar, He also established the Spring and Fall Feast, Leviticus 23. God did not establish these for no reason! What day did our Savior enter through the north Gate riding on the Donkey, why were there Throng's of People waiting for this event, and why were there Palm frons, and people laying their garment's on the Path that lead to the Temple??? Here is the best part! why did Jesus instruct the Disciples to gather at the gate on this Day! As soon as Jesus entered the Gate, His Disciples began to Shout, Hosanna in the Highest, Blessed is He who comes in the Name of the Lord!!!!! Then the Priest Demand that Jesus tells His Disciples to Shut Up and stop saying this. And Jesus replied! I WILL NOT< I WILL NOT< If the Rocks have to cry it out then the rocks will cry it out!!! Every year for at least a thousand years, on the 10th day of the month of Nissan the High Priest would go to Bethlehem, where they kept a Sheepfold to choose a lamb, without blemish for the National Passover Lamb, for the nation of Israel, and when the Priest entered the Gate the Other Priests would begin to Shout, Hosanna in the highest blessed is he who comes in the name of the Lord! these are called Holy Convocations, or Set apart rehearsals! Our Savior Just Fulfilled what is called Living Oracles, it is a how we, and what we do as a outward Worship to God, a Ritual! The Redeemer, enters the City at the beginning of the Feast of Redemption, and 4 days latter He becomes THE Passover Lamb, The Savior of the World!