It's not a rule. The article simply points out that different theolgical positions can't adopt all three.
God desires/wills that all are saved. This is in scripture. Your doctrine states that two and three will happen but not one. Nobody is arguing that God allows things to happen that He wouldn't desire people to do in the world as it is now.
Again, God desires that we not sin either - yet we sin,
so I ask you again,
Is God's will accomplished when a woman has an abortion?
Is God's will accomplished when a pedophile molests a 4 year old?
I'd like a yes or no answer to that please.
Since God allows things to happen,
that is your proof that He
ALSO let's people reject His wonderful Salvation to do what
they want to do instead -
becuz in order for God to have people who TRULY love Him for
who He is
and love righteousness (which is the whole point of His plan
in restoring His creation back to its intended state),
He HAS to let them freely love Him or not love Him.
Then those who love His laws & righteousness will enjoy living
in His newly restored world and worship Him for all He has done.
And here's another twist for you if you hadn't have looked at
it this way, it was also God's will to cause Satan to test Job
and put him thru a living hell on earth; wiping out his family...
God willed that Satan be given power to do that to His
servant!
Did you ever stop to think that God wills that we suffer because
He has a purpose we don't know about?
God hardened Pharaoh's heart by His own will -