For before the child shall know to refuse the evil, and choose the good, the land that thou abhorrest shall be forsaken of both her kingsIsaiah 7:16
This indicates there is an age of innocence, before knowing to refuse evil and choose good.
But now he is dead, wherefore should I fast? can I bring him back again? I shall go to him, but he shall not return to me.2 Samuel 12:23
This indicates that David will see his innocent son in heaven.
And the eyes of them both were opened, and they knew that they were naked; and they sewed fig leaves together, and made themselves apronsGenesis 3:7
This indicates that when innocence was lost, they were aware of their nakedness.