Romans 13:4

for he is a servant of God to you for good. But if you do that which is evil, be afraid, for he doesn't bear the sword in vain; for he is a servant of God, an avenger for wrath to him who does evil.

2 Chronicles 19:6

and said to the judges, "Consider what you do: for you don't judge for man, but for Yahweh; and [he is] with you in the judgment.

Romans 12:19

Don't seek revenge yourselves, beloved, but give place to God's wrath. For it is written, "Vengeance belongs to me; I will repay, says the Lord."

1 Thessalonians 4:6

that no one should take advantage of and wrong a brother or sister in this matter; because the Lord is an avenger in all these things, as also we forewarned you and testified.

Numbers 35:19-27

The avenger of blood shall himself put the murderer to death: when he meets him, he shall put him to death.

Joshua 20:5

If the avenger of blood pursue after him, then they shall not deliver up the manslayer into his hand; because he struck his neighbor unintentionally, and didn't hate him before.

Joshua 20:9

These were the appointed cities for all the children of Israel, and for the alien who lives among them, that whoever kills any person unintentionally might flee there, and not die by the hand of the avenger of blood, until he stands before the congregation.

1 Kings 10:9

Blessed is Yahweh your God, who delighted in you, to set you on the throne of Israel. Because Yahweh loved Israel forever, therefore made he you king, to do justice and righteousness."

Psalm 82:2-4

"How long will you judge unjustly, and show partiality to the wicked?" Selah.

Proverbs 16:14

The king's wrath is a messenger of death, but a wise man will pacify it.

Proverbs 20:2

The terror of a king is like the roaring of a lion. He who provokes him to anger forfeits his own life.

Proverbs 20:8

A king who sits on the throne of judgment scatters away all evil with his eyes.

Proverbs 20:26

A wise king winnows out the wicked, and drives the threshing wheel over them.

Proverbs 24:23-24

These also are sayings of the wise. To show partiality in judgment is not good.

Proverbs 31:8-9

Open your mouth for the mute, in the cause of all who are left desolate.

Ecclesiastes 8:2-5

I say, "Keep the king's command!" because of the oath to God.

Isaiah 1:17

Learn to do well. Seek justice. Relieve the oppressed. Judge the fatherless. Plead for the widow."

Jeremiah 5:28

They have grown fat. They shine; yes, they excell in deeds of wickedness. They don't plead the cause, the cause of the fatherless, that they may prosper; and they don't judge the right of the needy.

Ezekiel 22:27

Her princes in its midst are like wolves ravening the prey, to shed blood, [and] to destroy souls, that they may get dishonest gain.

Ezekiel 25:14

I will lay my vengeance on Edom by the hand of my people Israel; and they shall do in Edom according to my anger and according to my wrath; and they shall know my vengeance, says the Lord Yahweh.

Micah 3:1-4

I said, "Please listen, you heads of Jacob, and rulers of the house of Israel: Isn't it for you to know justice?

Micah 3:9

Please listen to this, you heads of the house of Jacob, and rulers of the house of Israel, who abhor justice, and pervert all equity.

Romans 13:6

For this reason you also pay taxes, for they are servants of God's service, attending continually on this very thing.

Treasury of Scripture Knowledge

Summary

For he is the minister of God to thee for good. But if thou do that which is evil, be afraid; for he beareth not the sword in vain: for he is the minister of God, a revenger to execute wrath upon him that doeth evil.

Bible References

He is

Romans 13:6
For this reason you also pay taxes, for they are servants of God's service, attending continually on this very thing.
1 Kings 10:9
Blessed is Yahweh your God, who delighted in you, to set you on the throne of Israel. Because Yahweh loved Israel forever, therefore made he you king, to do justice and righteousness."
2 Chronicles 19:6
and said to the judges, "Consider what you do: for you don't judge for man, but for Yahweh; and [he is] with you in the judgment.
Psalm 82:2
"How long will you judge unjustly, and show partiality to the wicked?" Selah.
Proverbs 24:23
These also are sayings of the wise. To show partiality in judgment is not good.
Proverbs 31:8
Open your mouth for the mute, in the cause of all who are left desolate.
Ecclesiastes 8:2
I say, "Keep the king's command!" because of the oath to God.
Isaiah 1:17
Learn to do well. Seek justice. Relieve the oppressed. Judge the fatherless. Plead for the widow."
Jeremiah 5:28
They have grown fat. They shine; yes, they excell in deeds of wickedness. They don't plead the cause, the cause of the fatherless, that they may prosper; and they don't judge the right of the needy.
Ezekiel 22:27
Her princes in its midst are like wolves ravening the prey, to shed blood, [and] to destroy souls, that they may get dishonest gain.
Micah 3:1
I said, "Please listen, you heads of Jacob, and rulers of the house of Israel: Isn't it for you to know justice?

Be

Proverbs 16:14
The king's wrath is a messenger of death, but a wise man will pacify it.
Proverbs 20:2
The terror of a king is like the roaring of a lion. He who provokes him to anger forfeits his own life.

Revenger

Romans 12:19
Don't seek revenge yourselves, beloved, but give place to God's wrath. For it is written, "Vengeance belongs to me; I will repay, says the Lord."
Numbers 35:19
The avenger of blood shall himself put the murderer to death: when he meets him, he shall put him to death.
Joshua 20:5
If the avenger of blood pursue after him, then they shall not deliver up the manslayer into his hand; because he struck his neighbor unintentionally, and didn't hate him before.
Ezekiel 25:14
I will lay my vengeance on Edom by the hand of my people Israel; and they shall do in Edom according to my anger and according to my wrath; and they shall know my vengeance, says the Lord Yahweh.

General references

Deuteronomy 19:20
Those who remain shall hear, and fear, and shall henceforth commit no more any such evil in the midst of you.
Deuteronomy 21:2
then your elders and your judges shall come forth, and they shall measure to the cities which are around him who is slain:
Joshua 1:16
They answered Joshua, saying, "All that you have commanded us we will do, and wherever you send us we will go.
2 Chronicles 19:5
He set judges in the land throughout all the fortified cities of Judah, city by city,
Acts 18:16
He drove them from the judgment seat.