Numbers 35:28

because he must live in the city of his refuge until the death of the high priest. But after the death of the high priest the killer will return to the land of his property.

John 15:4-6

Remain in me, and I in you. Just as the branch is not able to bear fruit from itself unless it remains in the vine, so neither [can] you, unless you remain in me.

Acts 11:23

who, [when he] arrived and saw the grace of God, rejoiced and encouraged [them] all to remain true to the Lord with {devoted hearts},

Acts 27:31

Paul said to the centurion and the soldiers, "Unless these [men] remain with the ship, you cannot be saved!"

Hebrews 3:14

For we have become partners of Christ, if indeed we hold fast the beginning of [our] commitment steadfast until the end,

Hebrews 6:4-8

For [it is] impossible [concerning] those who have once been enlightened, and have tasted the heavenly gift, and become sharers of the Holy Spirit,

Hebrews 9:11-12

But Christ has arrived [as] a high priest of the good [things] to come. Through the greater and more perfect tent not made by hands, that is, not of this creation,

Hebrews 9:15-17

And because of this, he is the mediator of a new covenant, in order that, [because] a death has taken place for the redemption of transgressions [committed] during the first covenant, those who are the called may receive the promise of the eternal inheritance.

Hebrews 10:26-30

For [if] we keep on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins,

Hebrews 10:39

But we are not among those who shrink back to destruction, but among those who have faith to the preservation of [our] souls.

Treasury of Scripture Knowledge

Summary

Because he should have remained in the city of his refuge until the death of the high priest: but after the death of the high priest the slayer shall return into the land of his possession.

After the death

Bible References

He should

John 15:4
Remain in me, and I in you. Just as the branch is not able to bear fruit from itself unless it remains in the vine, so neither [can] you, unless you remain in me.
Acts 11:23
who, [when he] arrived and saw the grace of God, rejoiced and encouraged [them] all to remain true to the Lord with {devoted hearts},
Acts 27:31
Paul said to the centurion and the soldiers, "Unless these [men] remain with the ship, you cannot be saved!"
Hebrews 3:14
For we have become partners of Christ, if indeed we hold fast the beginning of [our] commitment steadfast until the end,
Hebrews 6:4
For [it is] impossible [concerning] those who have once been enlightened, and have tasted the heavenly gift, and become sharers of the Holy Spirit,
Hebrews 10:26
For [if] we keep on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins,

After the death

Hebrews 9:11
But Christ has arrived [as] a high priest of the good [things] to come. Through the greater and more perfect tent not made by hands, that is, not of this creation,