First, let me point out that God has never switched to anyone's calendar, but has always kept His own. He didn't start using the Roman one when it was created somewhere around the 700's B.C. God doesn't follow the timetables of man. He sent His Son to earth when He thought it was the perfect time and He will send His Son back when He says it's the right time and we don't have to create some algorithm to figure out when that's gonna be. Since we've talked about that in a previous post, I won't focus on it. However, the calendar the Bible mentions is based on a lunar cycle and it also establishes the fact that first comes evening, then morning. Remember in Genesis, it says that the evening and the morning were the first day and not the other way around. The Jews have always kept to this and so at the start of this "New Year" it is 5773.
This feast is mentioned in a number of places in The Bible. First, in Levitucus 23:23-25, "Then the Lord spoke to Moses, saying, Speak to the children of Israel, saying: ‘In the seventh month, on the first day of the month, you shall have a sabbath-rest, a memorial of blowing of trumpets, a holy convocation. You shall do no customary work on it; and you shall offer an offering made by fire to the Lord.’” Numbers 10:1-10 mentions the role of the trumpets. To summarize this passage, God used trumpets in order to call the congregation TOGETHER, (take note of this because it gives us a picture of things to come) directing movement, sounding advancement, and going to war against oppressive enemies. Verse 8 states that it should be "as an ordinance forever throughout your generations." Verse 9 actually words it that when an alarm is sounded with the trumpets, "you will be remembered before the Lord your God, and you will be saved from your enemies." Also, they are to be blown in days of gladness, appointed feasts, at the beginning of months that follow a lunar calendar and over offerings.
Getting back to this concept of being called together by the trumpet - this is not just something that died out with the dark ages. There is a future event that will take place where the blast of the trumpet is going to have a key role. 1 Thessalonians 4:14-18 is a well known passage where The Lord's return will have the trumpet of God blasting and we will be caught up together with Him in the air. 1 Corinthians 15;51-54 says that at this trumpet blast "we shall be changed!"
Celebrating this feast is a rehearsal for this future event. It is the point in God's yearly cycle where He wants us to wake-up!
Interestingly enough, on Rosh Hashanah, people like to dip apples in honey as a reminder for a sweet new year. Maybe it can also remind us of the sweetness of God's appointed festivals and of all His promises to us!
If you want to learn more about other special holidays to celebrate with God, please see my tab, A Protected Bride Celebrates!