Are you saying that Christ is a scribe that changed some commandments? Are you saying that the new testament is completely unreliable? Why would it be different than the old in reliability?
I agree that things are sometimes altered -I'm just not sure I get your point.
First, there are commandments, statutes and judgments -and there were judges to apply them to various cases.
The ten commandments were literally written in stone -and are figuratively "written in stone".
Other things UNDER the commandments -judgments, etc. are dependent upon certain things and situations, such as divorce being allowed in the old testament. The commandments remained, but the rest concerned how to deal with people who broke the commandment in various situations.
Likewise, Christ -having more authority than Moses -as he was the one wrote the commandments in stone -was the Word -was I AM -was Melchizedek, etc., did not change the law -but did change judgments concerning how to deal with people who broke the law -and even made some judgments more lenient and some more strict.
Judgments under the law were turned by Christ from how to deal with others who committed sin -and more toward how to deal with one's own sins (knowing that the spirit of God would become more widely available -enabling people to obey God in spirit as well as letter).
The judgments changed because it was time that they did according to the overall plan of God.
This is why it is said that no new covenant would be needed if the first had been perfect.
It had not been meant to be perfect -it was meant for the situation which existed at the time -in order to prepare a people to receive the second covenant at the appropriate time.
The first covenant was the groundwork for the second.
For example....
Joh 8:1 Jesus went unto the mount of Olives.
Joh 8:2 And early in the morning he came again into the temple, and all the people came unto him; and he sat down, and taught them.
Joh 8:3 And the scribes and Pharisees brought unto him a woman taken in adultery; and when they had set her in the midst,
Joh 8:4 They say unto him, Master, this woman was taken in adultery, in the very act.
Joh 8:5 Now Moses in the law commanded us, that such should be stoned: but what sayest thou?
Joh 8:6 This they said, tempting him, that they might have to accuse him. But Jesus stooped down, and with his finger wrote on the ground, as though he heard them not.
Joh 8:7 So when they continued asking him, he lifted up himself, and said unto them, He that is without sin among you, let him first cast a stone at her.
Joh 8:8 And again he stooped down, and wrote on the ground.
Joh 8:9 And they which heard it, being convicted by their own conscience, went out one by one, beginning at the eldest, even unto the last: and Jesus was left alone, and the woman standing in the midst.
Joh 8:10 When Jesus had lifted up himself, and saw none but the woman, he said unto her, Woman, where are those thine accusers? hath no man condemned thee?
Joh 8:11 She said, No man, Lord. And Jesus said unto her, Neither do I condemn thee: go, and sin no more.
So, the people became more concerned with THEIR OWN conscience rather than the sin of the woman.
Why did Christ write on the ground with his finger? Twice? Was he doodling?
Christ -who was the Word -was I AM -was Melchizedek, etc., -and whose finger wrote the commandments in stone, certainly had the authority to change judgments under the law.
He did NOT change "the law".
(Exo 31:18 And he gave unto Moses, when he had made an end of communing with him upon mount Sinai, two tables of testimony, tables of stone, written with the finger of God.
Joh 8:58 Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.
Joh 1:1 In the beginning was the Word, and the Word was with God, and the Word was God.
Joh 1:2 The same was in the beginning with God.
Joh 1:3 All things were made by him; and without him was not any thing made that was made.
Joh 1:14 And the Word was made flesh, and dwelt among us..........
Heb 6:20 Whither the forerunner is for us entered, even Jesus, made an high priest for ever after the order of Melchisedec.
Heb 7:1 For this Melchisedec, king of Salem, priest of the most high God, who met Abraham returning from the slaughter of the kings, and blessed him;
Heb 7:2 To whom also Abraham gave a tenth part of all; first being by interpretation King of righteousness, and after that also King of Salem, which is, King of peace;
Heb 7:3 Without father, without mother, without descent, having neither beginning of days, nor end of life; but made like unto the Son of God; abideth a priest continually.)
Some things have been added to scripture (Easter replacing the word for Passover, etc.).
Some things have been added to the law/the law has been supplanted by some things (Mar 7:8 For laying aside the commandment of God, ye hold the tradition of men, as the washing of pots and cups: and many other such like things ye do.)
Christ spoke against such things.
He taught the keeping of the ten commandments -including weekly Sabbath and the holy days given by God in the old testament (which were kept by the new testament church -including gentiles)
However, he did change judgments -not the law -so the new testament record of such would not be an example of "the lying pen of the scribes"...... if that's what you were saying.