Two boundaries: May to July and/or Av to Tishri – which one to use?
Matthew 24:30-31 – Pointing to the use of approximately Tishri
30 And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory. 31 And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.
Why? Genesis 7 echoes to Tishri as the most intensive worldwide judgment chapter
Jewish Rosh Hashanah; the feast of trumpets is related to the rising of the bride. This is always locating to the month of Tishri; the Jewish seventh month is the target.
1 Thessalonians 4:16
For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first: