God can make someone of any age born again. Since God does that for adults according to His will, God can do the same for an infant or young child. He can reveal Himself to them and they can believe.
I am of the opinion God does do that. Before the children have done anything good or bad and are aware of right and wrong, if they are going to perish.
God has mercy on whom He will, and He did not impute your sins against you, if you have believed. God could have chosen to not be merciful and impute your sins to your account and then you would not be saved.
The question never seems to have come up among the disciples to ask Christ specifically. Since nothing like that is recorded, it may be they just had a certain assumption about those things.
God chose to not impute David's sins against him.
The Lord struck the child of David and Bathsheba with an illness and the child died.
David said when he dies, he will go to be with the child.
Clearly this is saying that infant went to a good place at death, the same good place David and all the other Old Testament saints went when they died, Abraham's Bosum. That same place was not heaven or hell, it was a type of temporary captivity, but a place of good things, and when Christ arose, He led that captivity captive and took them all into the prescence of God in Heaven.
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13 So David said to Nathan, “I have sinned against the Lord.”
And Nathan said to David, “The Lord also has put away your sin; you shall not die. 14 However, because by this deed you have given great occasion to the enemies of the Lord to blaspheme, the child also
who is born to you shall surely die.” 15 Then Nathan departed to his house.
The Death of David’s Son
And the Lord struck the child that Uriah’s wife bore to David, and it became ill. 16 David therefore pleaded with God for the child, and David fasted and went in and lay all night on the ground. 17 So the elders of his house arose
and went to him, to raise him up from the ground. But he would not, nor did he eat food with them. 18 Then on the seventh day it came to pass that the child died. And the servants of David were afraid to tell him that the child was dead. For they said, “Indeed, while the child was alive, we spoke to him, and he would not heed our voice. How can we tell him that the child is dead? He may do some harm!”
19 When David saw that his servants were whispering, David perceived that the child was dead. Therefore David said to his servants, “Is the child dead?”
And they said, “He is dead.”
20 So David arose from the ground, washed and anointed himself, and changed his clothes; and he went into the house of the Lord and worshiped. Then he went to his own house; and when he requested, they set food before him, and he ate. 21 Then his servants said to him, “What
is this that you have done? You fasted and wept for the child
while he was alive, but when the child died, you arose and ate food.”
22 And he said, “While the child was alive, I fasted and wept; for I said, ‘Who can tell
whether [
b]the Lord will be gracious to me, that the child may live?’ 23 But now he is dead; why should I fast? Can I bring him back again? I shall go to him, but he shall not return to me.”
