Romans 12:7

if it be the ministry, let him attend on that ministry; and he that teacheth, on teaching; he that exhorteth,

Acts 6:3-4

wherefore, brethren, chuse out of your number seven persons of good reputation, full of the holy spirit and wisdom, who may have the management of this affair:

Ephesians 2:19

Therefore now, you are no more strangers and foreigners, but fellow-citizens with the saints, and domesticks of God's family,

1 Timothy 4:15-16

meditate upon these things, be wholly employ'd about them, that your proficiency may appear to all.

Hebrews 8:4

which office he could not discharge here upon earth, where priests are already establish'd, who offer gifts according to the law:

Hebrews 10:19-22

Wherefore, my brethren, since by virtue of the blood of Jesus we have the liberty of entring into the holy of holies,

Treasury of Scripture Knowledge

Summary

And thou shalt appoint Aaron and his sons, and they shall wait on their priest's office: and the stranger that cometh nigh shall be put to death.

Bible References

They shall

Acts 6:3
wherefore, brethren, chuse out of your number seven persons of good reputation, full of the holy spirit and wisdom, who may have the management of this affair:
Romans 12:7
if it be the ministry, let him attend on that ministry; and he that teacheth, on teaching; he that exhorteth,
1 Timothy 4:15
meditate upon these things, be wholly employ'd about them, that your proficiency may appear to all.

And the stranger

Ephesians 2:19
Therefore now, you are no more strangers and foreigners, but fellow-citizens with the saints, and domesticks of God's family,
Hebrews 8:4
which office he could not discharge here upon earth, where priests are already establish'd, who offer gifts according to the law:
Hebrews 10:19
Wherefore, my brethren, since by virtue of the blood of Jesus we have the liberty of entring into the holy of holies,