The true gospel of Yeshua is the Mashiach died for our sins according to the Tanach (Old Testament), He was buried and He rose again the third day according to the Tanach (Luke 24, 1 Cor 15:1-6).
Yeshua ha Mashiach the same yesterday, and today and forever. (Heb 13)
” I am thy fellow servant and of thy brethren that have the testimony of Yeshua. Worship God! For the testimony of Yeshua is the Spirit of prophecy.” (Rev 19:10) And the testimony of Yeshua is the one true gospel. There is only one gospel, and it is the gospel I preach by the will and grace of God. It is the gospel the first apostolos too preached by the will and grace of God.