New Revised Standard Version
For the slayer must remain in the city of refuge until the death of the high priest; but after the death of the high priest the slayer may return home.

Contemporary English Version
You must stay inside the town until the high priest dies; only then can you go back home.

New American Bible
for the homicide was required to stay in the city of asylum until the death of the high priest. Only after the death of the high priest may the homicide return to the land of the homicide’s possession.

Douay-Rheims Bible
For the fugitive ought to have stayed in the city until the death of the high priest: and after he is dead, then shall the manslayer return to his own country.

For the fugitive ought to have stayed in the city until the death of the high priest: and after he is dead, then shall the manslayer return to his own country.

he should

John 15:4-6 Abide in me: and I in you. As the branch cannot bear fruit of itself, unless it abide in the vine, so neither can you, unless you abide in me. . . .

Acts 11:23 Who, when he was come and had seen the grace of God, rejoiced. And he exhorted them all with purpose of heart to continue in the Lord.

Acts 27:31 Paul said to the centurion and to the soldiers: Except these stay in the ship, you cannot be saved.

Hebrews 3:14 For we are made partakers of Christ: yet so, if we hold the beginning of his substance firm unto the end.

Hebrews 6:4-8 For it is impossible for those who were once illuminated, have tasted also the heavenly gift and were made partakers of the Holy Ghost, . . .

Hebrews 10:26-30,39 For if we sin wilfully after having the knowledge of the truth, there is now left no sacrifice for sins: . . .

after the death

Hebrews 9:11,12,15-17 But Christ, being come an high Priest of the good things to come, by a greater and more perfect tabernacle, not made with hand, that is, not of this creation: . . .