Ezekiel 33:3

if, when he sees the sword come on the land, he blows the trumpet and warns the people,

Hosea 8:1

Put a trumpet to your mouth. He comes like an eagle against the house of Jehovah, because they have broken My covenant and have sinned against My Law.

Nehemiah 4:18

For of the builders, each one had his sword tied by his side, and built. And he who sounded the trumpet was beside me.

Nehemiah 4:20

In whatever place you hear the sound of the trumpet, gather there to us. Our God will fight for us.

Isaiah 58:1

Cry aloud, do not spare, lift up your voice like a ram's horn, and show My people their rebellion, and the house of Jacob their sins.

Joel 2:1

Blow a ram's horn in Zion, and sound an alarm in My holy mountain; let all the inhabitants of the land tremble. For the day of Jehovah comes, for it is near at hand;

Jeremiah 4:5

Declare in Judah, and let it be heard in Jerusalem; and say, Blow the trumpet in the land; cry, gather together, and say, Gather yourselves and let us go into the fortified cities.

Jeremiah 6:1

O sons of Benjamin, take refuge out of the midst of Jerusalem. And blow the ram's horn in Tekoa, and set up a signal-fire over Beth-haccerem; for evil appears out of the north, and great ruin.

Jeremiah 51:27

Set up a banner in the land; blow a trumpet among the nations; prepare the nations against her. Call the kingdoms of Ararat, Minni, and Ashkenaz together against her; set a commander against her. Cause the horses to come up as the rough locusts.

Ezekiel 33:8-9

When I say to the wicked, O wicked one, you shall surely die; if you do not speak to warn the wicked from his way, that wicked one shall die in his iniquity; but I will require his blood at your hand.

Treasury of Scripture Knowledge

Summary

If when he seeth the sword come upon the land, he blow the trumpet, and warn the people;

Bible References

He blow

Ezekiel 33:8
When I say to the wicked, O wicked one, you shall surely die; if you do not speak to warn the wicked from his way, that wicked one shall die in his iniquity; but I will require his blood at your hand.
Nehemiah 4:18
For of the builders, each one had his sword tied by his side, and built. And he who sounded the trumpet was beside me.
Isaiah 58:1
Cry aloud, do not spare, lift up your voice like a ram's horn, and show My people their rebellion, and the house of Jacob their sins.
Jeremiah 4:5
Declare in Judah, and let it be heard in Jerusalem; and say, Blow the trumpet in the land; cry, gather together, and say, Gather yourselves and let us go into the fortified cities.
Jeremiah 6:1
O sons of Benjamin, take refuge out of the midst of Jerusalem. And blow the ram's horn in Tekoa, and set up a signal-fire over Beth-haccerem; for evil appears out of the north, and great ruin.
Jeremiah 51:27
Set up a banner in the land; blow a trumpet among the nations; prepare the nations against her. Call the kingdoms of Ararat, Minni, and Ashkenaz together against her; set a commander against her. Cause the horses to come up as the rough locusts.
Hosea 8:1
Put a trumpet to your mouth. He comes like an eagle against the house of Jehovah, because they have broken My covenant and have sinned against My Law.
Joel 2:1
Blow a ram's horn in Zion, and sound an alarm in My holy mountain; let all the inhabitants of the land tremble. For the day of Jehovah comes, for it is near at hand;
Amos 3:6
If a ram's horn is blown in a city, will the people not also tremble? If there is a calamity in a city, has Jehovah not also done it?
1 Corinthians 14:8
For also if a trumpet gives an uncertain sound, who shall prepare himself for the battle?