'Words of the Covenant' in the Bible

Moses was there with the Lord forty days and forty nights; he ate no bread and drank no water. And he wrote on the tablets the words of the covenant, the Ten Commandments.

These are the words of the covenant which the Lord commanded Moses to make with the sons of Israel in the land of Moab, in addition to the covenant which He made with them at Horeb (Sinai).

Then the king stood in his place and made a covenant before the Lord—to walk after (obey) the Lord, and to keep His commandments, His testimonies, and His statutes with all his heart and with all his soul, to perform the words of the covenant written in this book.