RE: that the Word in which Yah’shua came as, was abolished while also claiming Yah’shua came as a new covenant other than that which He came as.
“I tell you the truth, until heaven and earth disappear, not the smallest letter, not the least stroke of a pen, will by any means disappear from the Law until everything is accomplished.” (Matthew 5:18)
“”Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them.” ( Matthew 5:17)
The word in Greek is "plēroō" which means to "to fill up, give meaning, preach perfectly"
Thus when Yah'shua went on to say "Yes indeed! I tell you that until heaven and earth pass away, not so much as a yud or a stroke will pass from the Torah -- not until everything that must happen has happened", what He was saying is that He came to instruct perfectly the pure Word by rebuking rabbinic doctrinal law of man, i.e., the Sabbath laws that restricted movement that is not found in the Torah, that had added to the pure Word of YHVH. IOW, the clerics placed themselves higher than YHVH when it came to interpreting the Word of YHVH.
Big mistake, HUGE! RC doctrine is no better than that of the rabbis who Yah'shua rebuked and called least in the kingdom of heaven.