Actually, it does help. You just demonstrated the utter duplicity to FWT! By claiming that all dead babies are saved, you just confessed that there are indeed at least two gospels -- one for the very little people and one for the older ones. You just admitted that Christ's work of atonement for the former deceased people was efficacious and that they were saved by that efficacy. Yet, no such efficacy exists for older people! But Paul tells us that there's only one gospel -- not multiple gospels. But many in the Reformed Tradition (myself included) do believe, as you do regarding children. But the major difference is we do believe that because we also believe that Christ's atonement was just as efficacious for the rest of God's elect, as well, since God knew in eternity and predestined his elect in Chirst! There are numerous explicit scriptures that limits the efficacy of the atonement to specific kinds of people, e.g. sheep, friends, Church, God's Old Covenant people, etc.
Moreover, the phrase "little children" is found in the NT at least 10 times, depending on translation; and each time it refers to adult believers! But you don't consider yourself to be a small, helpless, weak, vulnerable little child in God's eyes, do you? You consider yourself to be among the wise and intelligent
Even the 2Sam 12 passage you quote pertains to and is limited to God's covenant people. Clearly, David saw himself and his child as belonging to God! This is why the king was so confident that he would one day be reunited with his son and see him.
Also, you appear to be oblivious to your own argument. How was it just of God to take the life of David's son since you unwittingly claim that no sin was imputed to the child because there was no law of which he was aware? On what judicial basis, then, did God cut the "sinless" baby off from the land of the living? After all, the penalty for sin is DEATH, is not? God clearly violated his own edict!
And where in scripture does it teach that sin merely affects human beings physically!? Isa 1:5-6 makes it abundantly clear that there is no spiritual soundness in the entire human being -- body, soul, spirit, heart, mind, conscience, passions, etc. -- that man's righteousness is like filthy rags (Isa 64:6)! Or again...that a little leaven (sin) leavens (corrupts) the entire lump -- not just part of it (1Cor 5:6; Gal 5:9). Or that fresh water and salt water cannot flow from the same spring (Jas 3:11). Or again wherein Paul confessed that was no good thing in his sin nature (Rom 7:18). And for your info, babies have natures -- it's called a human nature.
And finally, you ignore the fact that Jesus said in the most unqualified terms possible that no human being is good, which means babies come into this world with sinful natures (Mk 10:18). Jesus made no exceptions for little kids!
