Good point!
What do you think about John 6?
How many times did Jesus state If anyone? and eternal or live forever.
It was offerred to a mixed crowd,great crowd. It was the Jews with good reasoning rejected what he was stating. They did not understand! Yet in Acts many believed including Jewish.
John 6
50 But here is the bread that comes down from heaven,
which a man may eat and not die. 51 I am the living bread that came down from heaven. If anyone eats of this bread, he will live forever.
Later they prepared for the Passover where Jesus example of the new covenant.
Asked the brother how does one know he/she should partake?
As far as preaching, it is the same simple bibical concept.
Anyone who believes in Jesus should teach everything that Jesus taught! Paul states a few things to preach. Paul Last Supper All partook.
Also they were bowing to Jesus when he said,"All power and authority was given to him!"
One more thought,
I did not realize for many years that the JWs only believe New Testament scriptures and Pauls congregations were the 144,000. So the NT and Pauls writing were not fir the great crowd! They were 144,000. I think that is just made up bull! It was a wake up call. And it is how elders know who are apostates.
So asking your questions now marks you!