Are all sins equal?

I think all sin separates us from God, but not all sins are equal in their effect of our relationship with Him... BUT that being said, once they are forgiven, God forgets them all equally.

Here are three reasons why I believe all sins are not equal.

Old testament law (decided by God) states that certain sins (i.e adultery) result in death, but other sins (i.e. stealing) result in a smaller penalty.

There are different degrees of punishment for non-believers.

David repented like no tomorrow for committing adultery with Bathsheba and murdering her husband, and his child was killed by God as a consequence. We don't see this for David's smaller sins.

I think the first one is the strongest argument... Also, experience tells us the same thing: we feel that we have sinned greater when we do extreme things (murder) as opposed to non-extreme things (lying).

Basically, it's dangerous for anyone to equate lying with murder... That means that if you lie once, and commit murder once, it's the same thing! Doesn't make much sense does it?