It isn’t contradictory. And it doesn’t even seem contradictory if you understand the different dispensations and the way God manages His dealings with man. There is not “new thing” and “older thing”. There are just different things. During this “dispensation of grace” we are not under the laws that the Israelites are under. The “old thing” has not been done away with but it has been suspended until the “fullness of the Gentiles”. Once that happens God will once again deal with the Israelites as a nation under the “old thing” until they accept Jesus as their messiah.
Paul didn’t change Jesus’ words. He was taught and preached that the Israelites have been “set aside” with the “old thing” until the fullness of the Gentiles is realized.
Ahhh, I see... Then your god IS a respecter of persons - Christians get it easy-peasy... And the bride of Yeshua (the very Torah incarnate) is without Torah (lawless). And the law that dispensationalists are under (oh, wait... they are under *no* law), the law that is written on their hearts (wait... I thought they were under *no law*) is different than the ETERNAL TORAH, by which the rest of the world and especially DEM JOOOS will be judged by. And MIGHTY YHWH who does not change, changes all the time. Sure... not contradictory in the least.
It would be really good for you to understand what 'the fullness of the Gentiles' is. It is in the Torah.