Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen.
Matthew 28:19-20
Jesus’ instructions were that His disciples were to teach ALL things whatsoever He commanded them.
This included the instructions to teach ALL things …
That generation of believers was to teach ALL things to the next generation of believers, then that generation was to teach ALL things to the generation after that, and so on…
There was no exception to only teach a certain subset of things or to only teach certain things until such and such a time, or superceded by the teachings of such and such person…
The commission was to teach everything Jesus had taught the disciples, including …
And he said unto them, Go ye into all the world, and preach the gospel to every creature. He that believeth and is baptized shall be saved; but he that believeth not shall be damned. And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues; they shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover.
Mark 16:15-18