Greater Than The Akedah

What could be greater merit than the Akedah Yitzchak? The Zohar says that in the End of Days the merit of the Avot will run out and all that will be left is the merit of doing KIRUV. Rabbi Yaron Reuven says, giving shiurim is easy if you talk about Shalom Bayit, or Halachot, but rebuking people is very difficult, because most people don't like hearing they're wrong. And helping people do TeShuva is the greatest merit of all. The Zohar says it's even greater than Akeidat Yitzchak!