How difficult is this question? What is it with you guys? I’ve posted it several times. This question obviously does not apply to Cornelius. Sorry I let you side track me.
I sincerely want to know what your beliefs teach you on this.
Just because Cornelius doesn't fit into your tidy little box doesn't mean it doesn't apply to him, especially since he found grace in God's eyes before hearing the gospel and or being baptised.
Here is the relevance for what I tried to share with you and apparently I fumbled it: Cornelius was studying Judaism and heard of Jesus, as you may find in the context of the conversion story for Cornelius and his household, though Cornelius was still a gentile in Peter's eyes; those not in Judaism prior to the coming of Jesus were under the Noahic covenant and not under the law of Moses; the entire of creation testifies of God's existence and thus the verse in Jeremiah is relevant to the non-Jew and non-Christian ... and someone who has known nothing of Jesus is under the Noahic covenant and God measures the heart; little children are naturally faith exercisers and thus trust in what God gives them in the witness of creation in them and around them; 'being saved' is relevant to entering Heaven, as The Bride of Christ OR as a guest to the wedding, and there is ultimate implication for the Judgement Seat of Christ, eventually, for ALL will be resurrected to eternal life or one of two other fates, the lake of fire or oblivion; a little innocent child is the easiest soul for God to measure, as per Jeremiah, because that one is naturally exercising faith and trust.
We are often taught about hell fire, but there is another fate of man that is seldom dealt with, oblivion, dying and just dissipating into nothingness following the Great White Trone of Judgement, no reward or punishment. The punishment of Satan and his angels is called the lake of fire and some humans will have a portion in that punishment. But the Great White Throne of Judgement is a very different picture from the wedding of the Lamb and The Bride, and it is hallmarked by rewards and/or a command to 'depart from me, I never knew you.' Study that judgement scene and find the relevance to 'being saved' and you will have an answer to your question.
I mentioned the different 'destinies' issue because it is common to mix the destinies and confuse the issue of salvation for a wedding or salvation 'as if by fire'.