I hope you have read my answer to your first question.
You ask, in your second question, “Who preached another gospel that Jesus never preached?”
In the New Testament it is Paul who charges the Judaizers of preaching another Gospel,” mentioned in two places:
2 Corinthians 11:4 For if he that cometh preacheth another Jesus, whom we have not preached, or if ye receive another spirit, which ye have not received, or another gospel, which ye have not accepted, ye might well bear with him.
Galatians 1:6 I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:
If you take the time to be honest, and take the time to read carefully, I believe you will see that it is not Paul who is preaching “another Jesus.” It is not Paul who teaches “another Gospel.” It is the enemies of Paul and the enemies of Jesus who are doing this.
That the enemies of Paul and Jesus are the ones teaching and preaching false doctrine is very plain, as you will see, when I now address your claim:
I explained before that the Judaizers are not genuine Christians. What the Judaizers taught contradicts what Jesus taught and contradicts what Paul taught. The Judaizers were attempting to force or entice Gentile Christians to first become Jews in order to then become Christians.
You stated:
Paul omitted the First Commandment in Romans 13:8-10, the most serious one. He did it on purpose to promote his new Mystery Gospel, the New Testament.
I answer:
Paul did not omit anything. Paul is teaching exactly what Jesus plainly taught:
Paul is emphasizing the commandment of Jesus “to love one another”:
Romans 13:8 Owe no man any thing, but to love one another: for he that loveth another hath fulfilled the law.
Paul is teaching that “for he that loveth another hath fulfilled the law.”
Paul says this again in the next verse:
Romans 13:9 For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet; and if there be any other commandment, it is briefly comprehended in this saying, namely, Thou shalt love thy neighbour as thyself.
Paul repeats this yet again in the next verse:
Rom 13:10 Love worketh no ill to his neighbour: therefore love is the fulfilling of the law.
THIS IS EXACTLY WHAT JESUS TAUGHT:
Matthew 22:37-40
37 Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
38 This is the first and great commandment.
39 And the second is like unto it, Thou shalt love thy neighbour as thyself.
40 On these two commandments hang all the law and the prophets.
King James Version
Jesus taught this in answer to the following question that was addressed to Him:
Matthew 22:36 Master, which is the great commandment in the law?
Your second claim states:
“Thats why Jesus warned in 2John 1:9-11 that whoever does not abide in the teaching of Jesus does not have God.⁉️“
Your claim is mistaken. Jesus did not warn what is stated in 2 John 1:9-11. The Apostle John stated this. I explained to you what John was warning against when John wrote these words. John is warning against the false teachers of his day who did not believe that Jesus is coming back in the same resurrected physical body he had when He ascended to heaven because the false teachers taught the mistaken idea that anything physical is evil.
You ask in your final question:
“How can you say this Pauls New Testament is the word of God❓“
Paul’s writings in the New Testament are directly stated to be Scripture by Peter in 2 Peter 3:15-18,
2Pe 3:15 And account that the longsuffering of our Lord is salvation; even as our beloved brother Paul also according to the wisdom given unto him hath written unto you;
2Pe 3:16 As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction.
2Pe 3:17 Ye therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness.
2Pe 3:18 But grow in grace, and in the knowledge of our Lord and Saviour Jesus Christ. To him be glory both now and for ever. Amen.
Peter warns against those who “wrest” or twist or falsely interpret what Paul has written in his letters, “as they also do the other Scriptures, unto their own destruction.”
Therefore, Peter calls the writings of Paul, as we now have them in the New Testament, Scripture.
We all need to “grow in grace, and in the knowledge of our Lord and Saviour Jesus Christ.” The best way I know of to do that is to carefully read and believe what is contained in the New Testament. That is what I encourage you to do.