I talked about the controversy of affiliating Yom Teruah with Trumpets in my initial Seventh Trumpet post. I went back and forth on Psalm 81 more recently.
On one of the Karaite websites I follow I noticed that they object to affiliating Trumpets with Yom Teruah. Even Karaites can be fallible.
The Herbew word for neither kind of Trumpet is used in Leviticus 23:24 or Numbers 29, that is correct. To me as I argued before whether it's the Shofar or the Silver Trumpet is irrelevant, Revelation's Trumpets I believe draw on both as does The Rapture Trumpet.
The Karaites like Chris White feel Teruah without a clear Trumpet reference refers to the people making noise, not a Trumpet. Thing I've noticed though is that many Bible verses that use Teruah grammatically of the people shouting still reference Trumpets if not in the same verse very near by.
Revelation 11 also has voices shouting and making Alarm in Heaven after the Seventh Trumpet sounds.
Jeremiah 4:19 and Zephaniah 1:16 both use Teruah in reference to the Shofar, with the KJV translating it Alarm. Joshua 6 uses it while also talking about the Trumpets at the battle of Jericho. Psalm 150, the last Psalm (and a short one), uses it in verse 5 in reference to Cymbals but Trumpets were mentioned earlier. Also 2 Chronicles 13:12, 15:14 and Psalm 47:5. And Amos 2:2 uses it and the Shofar.
2 Samuel 6 15 and 1 Chronicles 15:28 use it and also mention Trumpets while talking about when David brought The Ark to Jerusalem. Revelation 11 tells use after the Seventh Trumpet is sounded that the Ark will be seen in the Temple in Heaven.
Some verses that don't use the word without mentioning Trumpets directly, are referring to "The Alarm of War" Numbers 10 and Joshua 6 both tell me we can infer the Alarm of War involves Trumpets.
Still, in The Torah this is the Holy Day we're told the least about. It's not mentioned in Deuteronomy 16 or Ezekiel 45. Yom Kippur is also absent from those chapters but it has Leviticus 16 dedicated to it.
Nehemiah 7:23-8:12 is all on this day, and it makes that day pretty important, though no Trumpets are referenced.
Before that however was Ezra 3, in verses 1-2 and 6-7 talking about the first year of the return from captivity (though some argue a time jump between verses 6 and 7). Verses 8-9 jump to the Second Month of the Second year to talk about Zerubbabel and Jeshua starting their work. I can't help but wonder if it can be conjectured while not clearly stated verse 10 has jumped forward to the anniversary of what was recorded before, that that day is supposed to be the day for consecrating the foundations during this period.
If so it's interesting that Ezra 3:10 refers to Trumpets, and says "after the ordinance of King David", and then verses 11 and 13 use Teruah 3 times with the KJV translating it Shout.
What can be interesting in terms of a Tishri Rapture in general is 2 Chronicles 31, talking about Hezekiah's reforms. Verses 5 and 6 talks about offering made for The Temple at Hezekiah's command, including First Fruits offerings. Then verse 7 says.
"In the third month they began to lay the foundation of the heaps, and finished
them in the seventh month."
Early in the third month is when Pentecost happens, could this time frame be a type of the time frame of The Church? Our foundation laid at Pentecost and finished in Tishri? Because after this these offerings were gathered up and stored in the "chambers in the house of the LORD" in verses 10 and 11.
While I don't like to build doctrine on Extra Biblical Jewish Traditions, especially ones not attested before The Talmud in the 2nd Century. The customs that went on during the first Century Second Temple period were an influence on the imagery of the New Testament. I've already done a post on how Yom Teruah customs tie into the Two Witnesses.
Numbers 10 is about the Silver Trumpets sounding every Holy Day and New Moon. What is interesting about Yom Teruah is it is the 7th New Moon of the year.