Reply To: Should Avraham have died at 173?

Esav was tzayid b’piv and he tricked Yitzchak into believing he was so frum by asking him questions like “how do you take ma’aser from salt” (answer: salt doesn’t require ma’aser). Perhaps he tricked Avraham in the same way for two years, but could not have continued to conceal the truth from him.