Whence the sin?

I heard a really good vort from a bochur here in Morristown today that he heard from Rabbi Melech Zweibel over shabbos. Why is Avraham Avinu called that? There's a Rashi that says that he was oleh v'shuv constantly, which means that he traveled all over the holy land of Israel. Chassidim explain it to mean that he sinned and repented constantly, which is why he's our father. It's not that he was perfect, but he always picked himself up and got going again.
All right, you'll have to excuse me because that doesn't sound as good as the way I originally heard it. I guess my memory isn't what it once was. Oh well. Happens. This also brings up something which Crawling Axe commented a couple nights ago which was also really good.
Basically, the Friediker Rebbe was sitting in a sukkah that had been built for him by some incredibly rich guy, and when the guy came in the Rebbe said, "Next time, groan before you sin."
Good shtuff, eh? Reminds me of the R' Levi Yitzchak story which I have told everyone on the blogosphere ad infinitum, but it's relatively apropos and it's a nice story, so why not?
Basically, a bochur came to Reb Levi Yitzchak and said that he needed a tikkun for a most heinous crime. Turns out he and his girl friend had relations which are generally reserved for those of a maritial persuasion. The great defender of Israel was all ready with a tikkun when the bochur mentioned one extenuating circumstance: he had made sure his girl went to mikveh before the hanky-panky happened. The Rabbi was not impressed, and he told the bochur that he had no tikkun for him. "Whyever not?!" cried the bochur, "I did much less than other people you have given tikkunim too! I tried to do the right thing!" R' Levi Yitzchak responded that he could give no tikkun because the couple had waited a whole week to do their deed. "I can understand if you had done it right away, when she was a niddah, but to have a whole week to meditate on the enormity of your sin and still go through it?! You I can not help."
We also find this in the holy books, where it mentions that someone who says he will sin and then repent is not given the opportunity to repent. Why? Because if you think you're going to sever your relationship with G-d and then just fix it up as if nothing happened...well, you've got another thing coming. Your sin will certainly be sincere, but will your teshuva be so? Still, as the Alter Rebbe explains in Tanya, though this person is given no help, he can nevertheless repent if he truly shakes the proverbial heavens with his sincerely-felt teshuva.

I'll end off with a nice story of R' Levi Yitzchak which I have also told ad infinitum, but which might come in handy for someone or other. The great Rabbi had a son who was of marriageable age, and who consequently got many offers of marriage. His father turned all these down, but curiously enough he gave all the shadchanim who suggested matches the traditional shadchanus gelt which is usually only given when a match works. The shadchanim realized that the Rabbi had no money, and they felt bad about taking it. Besides, they figured, he doesn't seem to like our suggestions anyway, so it's really not fair to him.
When R' Levi Yitzchak noticed that no one was coming with suggestions for junior he called the head of the shadchanim and asked him what was up. The matchmaker explained, and R' Levi Yitzchak said, "Do you know how it works in heaven? You read in the Gemara that forty days before the guy is conceived (or born or something) it's announced by the angels that the son of this one will marry the daughter of this one, but then there's also the gemara which says that since the creation Hashem has spent his time arranging matches. Really, the process is that a guy's name is brought up, and angels start to scream out potential girls. Sometimes there's only one or two mentioned before the right one is found, and sometimes it takes hundreds. But until each and every single name that is supposed to be mentioned is mentioned, there's nothing doing. The same thing happens down here. Shadchanim come with potential names, and until each name that was suggested by the angels is suggested down here, there's nothing doing. That's why I pay you each time, because each potential name brings the real one a little closer."

And with that I say good night.