What if the Carnal Mind factors in God's decision?
We know that man is a sinner, therefore the just God requires justice; but if he condemns all, then He would be ignoring His loving and merciful nature. In that alone, you would be correct. However, what if mankind is not only a sinner but one whose mind is bent on rebellion?
Romans 8:7 says that the Carnal Mind is enmity with God for it is not subject to God's laws, neither it can be.
To have a carnal body is one thing; we're subjected to our fleshly temptations to sin. but if our mind is set, then that is another. With that, 1/3 of humanity will He only save.