New Revised Standard Version
whenever a case comes to you from your kindred who live in their cities, concerning bloodshed, law or commandment, statutes or ordinances, then you shall instruct them, so that they may not incur guilt before the LORD and wrath may not come on you and your kindred. Do so, and you will not incur guilt.

Contemporary English Version
The people of Judah will bring you legal cases that involve every type of crime, including murder. You must settle these cases and warn the people to stop sinning against the LORD, so that he won't get angry and punish Judah. Remember, if you follow these instructions, you won't be held responsible for anything that happens.

New American Bible
And in every dispute that comes to you from your kin living in their cities, whether it concerns bloodguilt or questions of law, command, statutes, or ordinances, warn them lest they incur guilt before the LORD and his wrath come upon you and your kin. Do that and you shall not incur guilt.

Douay-Rheims Bible
Every cause that shall come to you of your brethren, that dwell in their cities, between kindred and kindred, wheresoever there is question concerning the law, the commandment, the ceremonies, the justifications: shew it them, that they may not sin against the Lord, and that wrath may not come upon you and your brethren: and so doing you shall not sin.

Every cause that shall come to you of your brethren, that dwell in their cities, between kindred and kindred, wheresoever there is question concerning the law, the commandment, the ceremonies, the justifications: shew it them, that they may not sin against the Lord, and that wrath may not come upon you and your brethren: and so doing you shall not sin.

between blood

Deuteronomy 17:8 If thou perceive that there be among you a hard and doubtful matter in judgment between blood and blood, cause and cause, leprosy and leprosy: and thou see that the words of the judges within thy gates do vary: arise, and go up to the place, which the Lord thy God shall choose.

warn them

Ezekiel 3:18-21 If, when I say to the wicked, Thou shalt surely die: thou declare it not to him, nor speak to him, that he may be converted from his wicked way, and live: the same wicked man shall die in his iniquity, but I will require his blood at thy hand. . . .

Ezekiel 33:6 And if the watchman see the sword coming, and sound not the trumpet: and the people look not to themselves, and the sword come, and cut off a soul from among them: he indeed is taken away in his iniquity, but I will require his blood at the hand of the watchman.

Acts 20:31 Therefore watch, keeping in memory that for three years I ceased not with tears to admonish every one of you, night and day.

1 Thessalonians 5:14 And we beseech you, brethren, rebuke the unquiet: comfort the feeble minded: support the weak: be patient towards all men.

wrath come

Numbers 16:46 Moses said to Aaron: Take the censer, and putting fire in it from the altar, put incense upon it, and go quickly to the people to pray for them: for already wrath is gone out from the Lord, and the plague rageth.

Joshua 22:18-20 And you have forsaken the Lord to day, and to morrow his wrath will rage against all Israel. . . .