The Gemara says that a גנב who steals in private is worse than a גזלן who steals openly because he [the גנב] fears man more than Hashem which is why he steals stealthily. Hence, he must pay כפל.
Normally a sin committed publicly is worse. Why here are things switched around??
Why at the Akeidah did Avraham have to prove his middah of יראה? [as it says עתה ידעתי כי ירא א-להים אתה].