'Testimony' in the Bible

Then they brought out the king’s son and put the crown on him, and gave him the testimony [a copy of the Mosaic Law] and made him king. And Jehoiada and his sons anointed him and said, “Long live the king!”

So the king called for Jehoiada the high priest and said to him, “Why have you not required the Levites to bring in from Judah and Jerusalem the tax for the tent of the testimony which was authorized by Moses, the servant of the Lord and the servant of the assembly of Israel?”