No, he wanted something out of it, that was with good intension.

God knew that, but he had to let free will in honor. He couldnt tell that he knew because that would interfere with free will.

So to Cain know in the most nrutral way he wasnt pleased with the intensions, Able got favored and that pissed Cain of so bad, he actually killed his brother over it.

I think he didnt do it to try best his brother by killing him.

Else he wouldnt have snarled back not being his brothers keeper

No, he thought he needed to do better then his brother, and thought 'animals would be better then some f'ing plants'.

And God knew, but wasnt pleased with the intention behind it.

It is just the same as how people try to fck other people over for selfgain nowadays.

But thats just how I feel about it.