I've found out that, when God says, "thou shalt not, do "these or that", it is really not because of Himself, but it's because of us.
For, as it is said, "what goes around comes around", so it is, that, whatever goes out from us towards others, is what shall equally return back to us some time, some days, somehow.
So, if what we are constantly dishing out to others is "negativity", that is what shall equally be dished out to us.

But very unfortunately, when we are at the receiving end, we blame people, forgetting that, we are only "reaping" what we actually sowed...

Therefore, as much as it lieth with us, let us endeavor to, "follow peace with all men, and holiness, without which, no man shall see the Lord". Hebrews 12:14.