Unlike most of the traditional Christian holidays which have their origins in paganism, all of the traditional Jewish holidays—or better, YHWH’s Feasts—have their origins in the Bible.
They were commanded by YHWH in Leviticus. Our Lord and Saviour Messiah Y'shua celebrated His Father’s Holidays when He was on the earth. Furthermore, none of YHWH’s Feasts have been nearly as commercialised as the Christian holidays of Christmas and Easter. Are there enough reasons for a Christian to celebrate these pagan holidays? In one word—no!
So, what benefit is there to a Christian celebrating Tabernacles (Hebrew: Sukkot), Pentecost (Hebrew: Shavuot), Passover (Hebrew: Pesach)—or any other feast? Well, the first reason is obedience. If YHWH instructs us to celebrate it, then we should do so. It sounds so simplistic, but it is so true. The spiritual benefits of being lead to celebrate, and following through with that leading, are phenomenal. Each biblical holiday concentrates on one or more attributes and actions of YHWH, allowing us to contemplate them in greater detail and depth than would normally be accomplished in a single day or week. Pesach concentrates on our sinfulness and how it enslaves us. YHWH freed us through the sacrifice of His Lamb. Sukkot concentrates on a handful of attributes: YHWH as provider and refuge, our anticipation of His coming kingdom, and the joy we have in being His children.
Studying Sukkot and celebrating this festival will give the Believer a glimpse of a spiritual journey beyond your wildest imagination. If you are hungry to seek what you will be doing in heaven one day, then study Sukkot as its design pierces the future! In fact, all of the Biblical Feasts are rehearsals for how things will be fulfilled in Eternity! We will not be celebrating days like "Christmas" then! So the question is, why participate in celebrations that are contrary to the Biblical mandate that YHWH hates? We can only be treading on thin ice for that kind of disobedience, so it’s something to think about.