What Does Abolishing and Fulfilling Mean?

Rabbi Brent says he did not come to abollish the abolish the law, or i came to fulfil the law. If a rabbi were to say everything technically correct, but then go out and not live according to what he just said, would he be fulfilling or abolishing? Tura? Abolishing,. You see on the other side of the sermon on the mount now, on this other side, we have a very similar teaching - by their fruit, you will know them. And that's the example that jesus uses: He says, you cannot pick good fruit. Grapes, figs from thorns or thistles. If it's good fruit