'It is Written' in the Bible

So they proclaimed and circulated a proclamation in all their cities and in Jerusalem, saying, “Go out to the hills, and bring olive branches and wild olive branches, myrtle branches, palm branches and branches of other leafy trees, to make booths, as it is written.”

Likewise we cast lots for the supply of wood among the priests, the Levites and the people so that they might bring it to the house of our God, according to our fathers’ households, at fixed times annually, to burn on the altar of the Lord our God, as it is written in the law;

and bring to the house of our God the firstborn of our sons and of our cattle, and the firstborn of our herds and our flocks as it is written in the law, for the priests who are ministering in the house of our God.