How should we observe Yom Teruah / Day of Shouting/Blowing of Trumpets?

Answer From The Annual Reading Schedule - Week 28 Notes For Leviticus: First of all, for any observance we must remember that Yahweh does not like iniquity or unrighteousness and assembly to be mixed together (Isaiah 1:13). What this means is that we cannot be hypocritical. We can't be pretending to follow Yahweh when it comes time for an observance, and then on all other days living wickedly without any regard for the laws of Yahweh. We can't oppress the poor, the fatherless, and the widow a day before a feast, keep the feast and rest, and then go back to oppression the day after the feast and expect that Yahweh will be pleased with us.

We need to make sure that we are not pretending and that we are looking at the way we live and our hearts to see if they are in line with Yahweh's laws. If we're just pretending on feast days and other observances and not really following Yahweh in the rest of our life, then He will not be pleased with our fake attempts to keep His Set-Apart Days. Now, to the specifics of this question:

Yom Teruah is mentioned in this reading in Leviticus 23:24-25. In the previous question earlier in these notes, I already explained why it is I believe we should not cook on this day of Yom Teruah. Yom means "day" and Teruah means "shouting". In English, we think of "shouting" as something humans do with their voice, but in Hebrew the blast of a trumpet or shofar is also a "shout". A shofar is a ram's horn, for those not familiar with that word. Sometimes shofar is spelled shophar with a ph instead of an f. Yom Teruah is commonly called in English "Day of Blowing of Trumpets" but I think a better more literal translation is "Day of Shouting".

In Leviticus 23:24 it literally says in the Hebrew to have a "Zikhrown Teruwah" or "Zikhron Teruah" depending on how you want to spell it. Zikhron is translated as "remembrance". So it is a day for a "remembrance of shouting", or as some translations say, "remembrance of blowing of trumpets".

It's interesting how in Revelation there are multiple trumpets mentioned (e.g. Revelation 8:6). Also it says in 1 Corinthians 15:52 that at the "last trumpet" that the dead shall be raised. And in 1 Thessalonians 4:16 it says that Yahushua will come with a "shout". So all of Yom Teruah seems to be a reminder about the time Yahushua returns and the dead who are His will be raised in our spiritual bodies. It is going to be AN AWESOME TIME!

So Yom Teruah is a good time for being reminded of the need to BE READY and WATCHFUL because we do not know when our life will be up and we do not know when Yahushua will return either. It is a time to remember what will happen in the future. It is a time to blow the shofar in joy and jubilation. It is a time to feast and rejoice. We are commanded also to rest, not work, and have a set-apart gathering for reading of the Scriptures – so this is a set-apart day and should be treated just like the weekly Sabbath. We should prepare our meals in advance. It is a good day to offer up praises also, together, and pray as well.

Between the Day of Shouting (Yom Teruah) and the Day of the Atonements (Yom HaKippuriym) we should also have an increased focus on repentance and thinking of things that need to change in our life. In a way, Yom Teruah might be part of preparing us for Day of the Atonements in that it is a day to sound the alarm, in a sense (at least that's kind of how I think of it).