So yes I do believe Jesus's ministry was to establish the kingdom and the new covanent and at the time yes he mainly spoke to the jews but to say that the words of Jesus are not meant for us is absolutely absurd
Here is how I see it, Jesus's ministry was to lay the foundations of the kingdom and the new covenant and he did so in his death and resurrection Paul and the apostles ministry was to build on that foundation declaring the gospel that saves and the gospel of Jesus Christ is that he died and rose again for the salvation of all who would believe in him.
The plan of salvation from the beggining was always one of love and intimacy with God to restore the connection lost in the garden of eden anyone who claims Paul preached a different gospel clearly doesn't know Paul very well and as far as
@Hann57 goes he doesn't show any fruits of the spirit he puts anyone who goes against him on ignore and show no love in his words doesn't have a teachable spirit and seems to blindly believe in these things he preaches and nothing else.
Again we need to pray for such people because they are blind to the truth and if they knew the truth they would know God's love