Old Testament

The Fourth Book of Moses Called Numbers: Chapter 4:17-21-28

Then the Lord spoke to Moses and Aaron, saying: "Do not cut off the tribe of the families of the Kohathites from among the Levites; but do this in regard to them, that they may live and not die when they approach the most holy things: Aaron and his sons shall go in and appoint each of them to his service and his task. But they shall not go in to watch while the holy things are being covered, lest they die."

Then the Lord spoke to Moses, saying: "Also take a census of the sons of Gershon, by their fathers' house, by their families. From thirty years old and above, even to fifty years old, you shall number them, all who enter to perform the service, to do the work in the tabernacle of meeting. This is the service of the families of the Gershonites, in serving and carrying: They shall carry the curtains of the tabernacle and the tabernacle of meeting with its covering, the covering of badger skins that is on it, the screen for the door of the tabernacle of meeting, the screen for the door of the gate of the court, the hangings of the court which are around the tabernacle and altar, and their cords, all the furnishings for their service and all that is made for these things: so shall they serve. Aaron and his sons shall assign all the service of the sons of the Gershonites, all their tasks and all their service. And you shall appoint to them all their tasks as their duty. This is the service of the families of the sons of Gershon in the tabernacle of meeting. And their duties shall be under the authority of Ithamar the son of Aaron the priest.

New Testament

The First Epistle of Peters: Chapter 1:13-22-25

Therefore gird up the loins of your mind, be sober, and rest your hope fully upon the grace that is to be brought to you at the revelation of Jesus Christ; as obedient children, not conforming yourselves to the former lusts, as in your ignorance; but as He who called you is holy, you also be holy in all your conduct, because it is written, "Be holy, for I am holy."

And if you call on the Father, who without partiality judges according to each one's work, conduct yourselves throughout the time of your stay here in fear; knowing that you were not redeemed with corruptible things, like silver or gold, from your aimless conduct received by tradition from your fathers, but with the precious blood of Christ, as of a lamb without blemish and without spot. He indeed was foreordained before the foundation of the world, but was manifest in these last times for you who through Him believe in God, who raised Him from the dead and gave Him glory, so that your faith and hope are in God.

Since you have purified your souls in obeying the truth through the Spirit in sincere love of the brethren, love one another fervently with a pure heart, having been born again, not of corruptible seed but incorruptible, through the word of God which lives and abides forever, because

"All flesh is as grass,
And all the glory of man as the flower of the grass.
The grass withers, And its flower falls away, But the word of the Lord endures forever."

Now this is the word which by the gospel was preached to you.