The primary intent of this post is to show that all children go to heaven if they die.
“Then Nathan [the prophet] departed to his house. And the Lord struck the child that Uriah’s wife bore to David, and it became ill. David therefore pleaded with God for the child, and David fasted and went in and lay all night on the ground. 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. 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!’ 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.’ 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. 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.’ And he said, ‘While the child was alive, I fasted and wept; for I said, “Who can tell whether the Lord will be gracious to me, that the child may live?” 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.’” 2 Samuel 12:15-23.
“O Lord, our Lord, how excellent is Your name in all the earth, You who set Your glory above the heavens! Out of the mouths of babes and nursing infants You have ordained strength, because of Your enemies, that You may silence the enemy and the avenger.” Psalm 8:1-2.
“…who [Jesus, God the Son], being in the form of God, did not consider it robbery to be equal with God, but made Himself of no reputation, taking the form of a bondservant, and coming in the likeness of men. And being found in appearance as a man, He humbled Himself and became obedient to the point of death, even the death of the cross. Therefore God also has highly exalted Him and given Him the name which is above every name, that at the name of Jesus every knee should bow, of those in heaven, and of those on earth, and of those under the earth, and that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father.” Philippians 2:6-11.