What happens to infants who die before reaching maturity?

The question of what happens to infants who die has been a source of great pain and concern for many. Based on Scripture, it is believed that infants who die are welcomed into the presence of God. David's words about his deceased infant son, 'I shall go to him, but he shall not return to me,' suggest a hope in God’s mercy for those unable to choose righteousness due to their age. Furthermore, passages like Romans 5:12 affirm that all have sinned in Adam, but they also point to God's grace through Christ, which ensures those who have not yet committed sin like adults are brought to Him in His mercy.