First: there are numerous references to how Moses wrote the law of God.
“And Moses wrote all the words of the Lord” (Exodus 24:4).
“Then the Lord said to Moses, ‘Write these words…’ ” (Exodus 34:27).
“Now Moses wrote down the starting points of their journeys at the command of the Lord” (Numbers 33:2).
“So Moses wrote this law and delivered it to the priests…” (Deuteronomy 31:9).
Second: Bible writers in the Old Testament credited Moses with writing the Pentateuch-also known as the Torah or “the Law.”
“There in the presence of the Israelites, Joshua copied on stones the law of Moses, which he [Moses] had written” (Joshua 8:32).
“…Hilkiah the priest found the Book of the Law of the Lord given by Moses” (2 Chronicles 34:14). Also ( Ezra 3:2; 6:18; Nehemiah 13:1; Malachi 4:4).
Third: the New Testament writers also affirmed that Moses wrote the Pentateuch.
“The law was given through Moses” (John 1:17).
“And beginning at Moses and all the Prophets, He expounded to them [His disciples—EL] in all the Scriptures the things concerning Himself ” (Luke 24:27).
“For Moses from generations of old hath in every city them that preach him, being read in the synagogues every Sabbath” (Acts 15:21).
“For Moses writes about the righteousness which is of the law, ‘The man who does those things shall live by them’ ” (Romans 10:5).
“But even unto this day, when Moses is read, the vail is upon their heart” (2 Corinthians 3:15).
“They have Moses (his writings) and the prophets; let them hear them” (Luke 16:29).
“We have found Him of whom Moses in the law, and also the prophets, wrote—Jesus of Nazareth, the son of Joseph” (John 1:45, emp. added). Notice also that New Testament Sadducees considered Moses as the author, saying: “Teacher, Moses wrote to us that if a man’s brother dies, and leaves his wife behind, and leaves no children, his brother should take his wife and raise up offspring for his brother” (Mark 12:19).
Fourth: Jesus Himself confirmed that “the Law” came from Moses.
“For if you believed Moses, you would believe Me; for he wrote about Me. But if you do not believe his writings, how will you believe My words?” (John 5:46-47).
In His service,