Joshua 20:3

1 The LORD also spake unto Joshua, saying,

2 Speak to the children of Israel, saying, Appoint out for you cities of refuge, whereof I spake unto you by the hand of Moses:

That the slayer that killeth any person unawares and unwittingly may flee thither: and they shall be your refuge from the avenger of blood.

4 And when he that doth flee unto one of those cities shall stand at the entering of the gate of the city, and shall declare his cause in the ears of the elders of that city, they shall take him into the city unto them, and give him a place, that he may dwell among them.

5 And if the avenger of blood pursue after him, then they shall not deliver the slayer up into his hand; because he smote his neighbour unwittingly, and hated him not beforetime.

Here the Bible tells a story about someone else. Ask yourself what it can say to us today. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
so that anyone who kills another unintentionally or accidentally may flee there. These will be your refuge from the avenger of blood.
KJV
That the slayer that killeth any person unawares and unwittingly may flee thither: and they shall be your refuge from the avenger of blood.
WEB
that the man slayer who kills any person accidentally or unintentionally may flee there. They shall be to you for a refuge from the avenger of blood.
ASV
that the manslayer that killeth any person unwittingly [and] unawares may flee thither: and they shall be unto you for a refuge from the avenger of blood.
DARBY
that the slayer who unwittingly without intent smiteth any one mortally may flee thither: and they shall be your refuge from the avenger of blood.
BLB
for the fleeing there of the manslayer who kills a person in error, without knowledge. And they shall be unto you⁺ a refuge from the avenger of the blood.
ÅB
så en manndraper som av vanvare, uten å ville det, slår noen ihjel, kan flykte dit. Dere skal ha dem til tilfluktsstæder for manndraperen, når han flykter for blodhevneren.
OTB
slik at enhver som dreper en person utilsiktet og uten forsett kan flykte dit og finne tilflukt fra blodhevneren.
B1930
så en manndraper som av vanvare, uten å ville det, slår nogen ihjel, kan fly dit; I skal ha dem til tilfluktsstæder for manndraperen, når han flyr for blodhevneren.

Study notes (Tyndale)

Original text and word study