MOSES RECEIVED THE TORAH AND ALREADY EXPLAINED IT IN DEUTERONOMY. 

There is no such thing as an oral Law because Moses wrote down everything in a book with his own hands, as YHWH commanded him to do.

Moses would have not trusted the memory of the Israelites whom he called 'stiff-necked', ever ready to not follow instructions, to apply the Law of his YHWH God. 

Exodus 34:27-28 ASV
(27) And Jehovah said unto Moses, Write thou these words: for after the tenor of these words I have made a covenant with thee and with Israel.
(28) And he was there with Jehovah forty days and forty nights; he did neither eat bread, nor drink water. And he wrote upon the tables the words of the covenant, the ten commandments

Numbers 12:6-8 ASV
(6) And he said, Hear now my words: if there be a prophet among you, I Jehovah will make myself known unto him in a vision, I will speak with him in a dream.
(7) My servant Moses is not so; he is faithful in all my house:
(8) with him will I speak mouth to mouth, even manifestly, and not in dark speeches; and the form of Jehovah shall he behold: wherefore then were ye not afraid to speak against my servant, against Moses?


Deuteronomy 18:15 ASV
(15) Jehovah thy God will raise up unto thee a prophet from the midst of thee, of thy brethren, like unto me; unto him ye shall hearken;

John 12:47-50 ASV
(47) And if any man hear my sayings, and keep them not, I judge him not: for I came not to judge the world, but to save the world.
(48) He that rejecteth me, and receiveth not my sayings, hath one that judgeth him: the word that I spake, the same shall judge him in the last day.
(49) For I spake not from myself; but the Father that sent me, he hath given me a commandment, what I should say, and what I should speak.
(50) And I know that his commandment is life eternal: the things therefore which I speak, even as the Father hath said unto me, so I speak.

Moses is the mouth of YHWH and YHWH is the mouth of God Father: two Prophets.

John 12:49-50 ASV
(49) For I spake not from myself; but the Father that sent me, he hath given me a commandment, what I should say, and what I should speak.
(50) And I know that his commandment is life eternal: the things therefore which I speak, even as the Father hath said unto me, so I speak.

Moses never used his own judgment on the word which he received. Moses did not make himself a Rabbi either, twisting the Torah as his intelligence deems it. When there is no guidance, Moses always inquired of Yehoshua Messiah YHWH for what to do. He counsels us to follow his lead to the letter (Deuteronomy 4:1-2, 5:31-32). Why would Rabbis or others do? Only Satan used his judgment on the word of Yehoshua Messiah YHWH.

Leviticus 24:10-12 ASV
(10) And the son of an Israelitish woman, whose father was an Egyptian, went out among the children of Israel; and the son of the Israelitish woman and a man of Israel strove together in the camp:
(11) and the son of the Israelitish woman blasphemed the Name, and cursed; and they brought him unto Moses. And his mother's name was Shelomith, the daughter of Dibri, of the tribe of Dan.
(12) And they put him in ward, that it might be declared unto them at the mouth of Jehovah.

Numbers 27:5 ASV
(5) And Moses brought their cause before Jehovah.

Numbers 15:32-34 ASV
(32) And while the children of Israel were in the wilderness, they found a man gathering sticks upon the sabbath day.
(33) And they that found him gathering sticks brought him unto Moses and Aaron, and unto all the congregation.
(34) And they put him in ward, because it had not been declared what should be done to him.

MOSES WROTE ABOUT YEHOSHUA MESSIAH YHWH (LUKE 2:11) AND SPOKE TO MESSIAH YHWH. JOHN 8:24

John 5:46-47 ASV
(46) For if ye believed Moses, ye would believe me; for he wrote of me.
(47) But if ye believe not his writings, how shall ye believe my words

Luke 9:28-36 ASV
(28) And it came to pass about eight days after these sayings, that he took with him Peter and John and James, and went up into the mountain to pray.
(29) And as he was praying, the fashion of his countenance was altered, and his raiment became white and dazzling.
(30) And behold, there talked with him two men, who were Moses and Elijah;
(31) who appeared in glory, and spake of his decease which he was about to accomplish at Jerusalem.
(32) Now Peter and they that were with him were heavy with sleep: but when they were fully awake, they saw his glory, and the two men that stood with him.
(33) And it came to pass, as they were parting from him, Peter said unto Jesus, Master, it is good for us to be here: and let us make three tabernacles; one for thee, and one for Moses, and one for Elijah: not knowing what he said.
(34) And while he said these things, there came a cloud, and overshadowed them: and they feared as they entered into the cloud.
(35) And a voice came out of the cloud, saying, This is my Son, my chosen: hear ye him.
(36) And when the voice came, Jesus was found alone. And they held their peace, and told no man in those days any of the things which they had seen.