1 Corinthians 15:52 NIV
52 in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed.
Numbers 10:1-5, 6b-7 NIV
10 The Lord said to Moses: 2 “Make two trumpets of hammered silver, and use them for calling the community together and for having the camps set out. 3 When both are sounded, the whole community is to assemble before you at the entrance to the tent of meeting. 4 If only one is sounded, the leaders—the heads of the clans of Israel—are to assemble before you. 6bThe blast will be the signal for setting out. 7 To gather the assembly, blow the trumpets, but not with the signal for setting out.
Revelation 5 NIV
The Scroll and the Lamb
5 Then I saw in the right hand of Him who sat on the throne a scroll with writing on both sides and sealed with seven seals. 2 And I saw a mighty angel proclaiming in a loud voice, “Who is worthy to break the seals and open the scroll?” 3 But no one in heaven or on earth or under the earth could open the scroll or even look inside it. 4 I wept and wept because no one was found who was worthy to open the scroll or look inside. 5 Then one of the elders said to me, “Do not weep! See, the Lion of the tribe of Judah, the Root of David, has triumphed. He is able to open the scroll and its seven seals.”
6 Then I saw a Lamb, looking as if it had been slain, standing at the center of the throne, encircled by the four living creatures and the elders. The Lamb had seven horns and seven eyes, which are the seven spirits of God sent out into all the earth. 7 He went and took the scroll from the right hand of Him who sat on the throne. 8 And when He had taken it, the four living creatures and the twenty-four elders fell down before the Lamb. Each one had a harp and they were holding golden bowls full of incense, which are the prayers of God’s people. 9 And they sang a new song, saying:
“You are worthy to take the scroll
and to open its seals,
because You were slain,
and with Your blood You purchased for God
persons from every tribe and language and people and nation.
10 You have made them to be a kingdom and priests to serve our God,
and they will reign on the earth.”
11 Then I looked and heard the voice of many angels, numbering thousands upon thousands, and ten thousand times ten thousand. They encircled the throne and the living creatures and the elders. 12 In a loud voice they were saying:
“Worthy is the Lamb, Who was slain,
to receive power and wealth and wisdom and strength
and honor and glory and praise!”
13 Then I heard every creature in heaven and on earth and under the earth and on the sea, and all that is in them, saying:
“To Him who sits on the throne and to the Lamb
be praise and honor and glory and power,
for ever and ever!”
14 The four living creatures said, “Amen,” and the elders fell down and worshiped.
4 But you, Daniel, roll up and seal the words of the scroll until the time of the end. Many will go here and there to increase knowledge.”
5 Then I, Daniel, looked, and there before me stood two others, one on this bank of the river and one on the opposite bank. 6 One of them said to the man clothed in linen, who was above the waters of the river, “How long will it be before these astonishing things are fulfilled?”
7 The man clothed in linen, who was above the waters of the river, lifted his right hand and his left hand toward heaven, and I heard him swear by Him Who lives forever, saying, “It will be for a time, times and half a time. When the power of the holy people has been finally broken, all these things will be completed.”
8 I heard, but I did not understand. So I asked, “My lord, what will the outcome of all this be?”
9 He replied, “Go your way, Daniel, because the words are rolled up and sealed until the time of the end. 10 Many will be purified, made spotless and refined, but the wicked will continue to be wicked. None of the wicked will understand, but those who are wise will understand.
5 Then the angel I had seen standing on the sea and on the land raised his right hand to heaven. 6 And he swore by Him Who lives for ever and ever, who created the heavens and all that is in them, the earth and all that is in it, and the sea and all that is in it, and said, “There will be no more delay! 7 But in the days when the seventh angel is about to sound his trumpet, the mystery of God will be accomplished, just as He announced to His servants the prophets.”