Not to dig it in, but Abraham never observed a sabbath. Not one! That didn't exist until commanded by Moses in Exodus. Yet, to him was that promise made!
I don't know how you are connecting Joseph to the topic, but will answer "no" to adultery. The angel told him he didn't.
Matthew 1:20 (KJV) [SUP]20 [/SUP] But while he thought on these things, behold, the angel of the Lord appeared unto him in a dream, saying, Joseph, thou son of David, fear not to take unto thee Mary thy wife: for that which is conceived in her is of the Holy Ghost.