Why Teaching Children About God Is Urgent—and Trusting God’s Mercy on the Unborn

There is a school of thought that says babies and small children are innocent because they haven’t knowingly sinned. And from a human point of view, it’s a comforting and pleasing idea that babies automatically go to heaven if they die. But unfortunately, that’s not what the Bible teaches. While it’s true that infants haven’t made conscious choices between good and evil, they are still born under the curse of inherited sin—a condition that affects all of us, born or unborn. That’s exactly why it is so crucial to instruct children in the truth of God as early as possible and to understand the weight of their spiritual condition even before birth.

Many people assume that since a newborn hasn’t committed any acts of wrongdoing, they must be morally pure. But Scripture paints a very different picture of the human condition. In Psalm 51:5 (NIV), King David declares, “Surely I was sinful at birth, sinful from the time my mother conceived me.” David wasn’t saying he made bad choices in the womb. He was acknowledging that sin isn’t just something we do—it’s something we are, by nature, inherited from our first parents, Adam and Eve.

The doctrine of inherited sin—commonly known as original sin—teaches that every human being, including the unborn, enters life with a sinful nature. Romans 5:12 (NLT) tells us, “When Adam sinned, sin entered the world. Adam’s sin brought death, so death spread to everyone, for everyone sinned.” This is a universal human condition. No one escapes it, including those still in the womb. Even unborn children are subject to the same fallen nature as the rest of humanity.

In fact, Scripture affirms the personhood and spiritual identity of the unborn. Jeremiah 1:5 says, “Before I formed you in the womb I knew you, before you were born I set you apart.” And in Luke 1:41, the unborn John the Baptist leapt in his mother’s womb in response to Mary’s greeting—clear evidence of spiritual awareness even before birth. If the unborn can respond to God, they are also subject to the consequences of sin. In other words, humanity’s sin condition does not begin at birth—it begins at conception.

The popular claim that “babies can’t sin because they don’t know the difference between good and evil” may reflect human compassion, but it contradicts biblical truth. Isaiah 7:16 does mention that a child does not know to choose between good and evil—but it doesn't mean such children are without a sinful nature. Rather, it shows they are incapable of moral reasoning—not that they are spiritually clean before a holy God. The distinction is critical: moral inability does not equal spiritual innocence.

Romans 3:23 says, “For everyone has sinned; we all fall short of God’s glorious standard.” That includes you, me, our children, our unborn babies—everyone. This is why teaching children about God, Christ, sin, and redemption is not optional. It is urgent. We are not merely shaping their character; we are helping rescue their souls from the inherited curse of sin. Proverbs 22:6 urges us, “Train up a child in the way he should go; even when he is old he will not depart from it.”

To leave children—born or unborn—to their own understanding is not mercy, but neglect. Left to themselves, they will not naturally seek God. Romans 3:11 (NLT) states, “No one is truly wise; no one is seeking God.” This is why Christian parents, pastors, and communities must take seriously the call to instruct, model, and teach children the truth about who God is, what sin is, and why Christ is the only hope.

Yet, in the midst of this sobering reality, there is profound hope: God is not only just—He is also merciful. While the Bible affirms that all are born with a sinful nature, it also reveals God’s immense compassion for the weak, the helpless, and those unable to respond consciously to His truth—this includes unborn children.

Though Scripture does not give a detailed doctrinal statement on the eternal destiny of infants or unborn children who die, it does provide strong principles that reveal God’s character. King David, after the death of his infant son, said in 2 Samuel 12:23 (NLT), “Can I bring him back again? I will go to him, but he will not return to me.” This reflects David’s hope that he would be reunited with his child in God’s presence, trusting in God’s mercy.

God’s tender compassion is further shown in passages like Psalm 103:13 (NLT): “The Lord is like a father to his children, tender and compassionate to those who fear him.” Jesus also warns in Matthew 18:10, “Beware that you don’t look down on any of these little ones. For I tell you that in heaven their angels are always in the presence of my heavenly Father.” If God watches over children so closely in life, we can trust His mercy continues beyond this life.

Theologians like Charles Spurgeon and John MacArthur have expressed confidence that God extends His saving grace to infants who die, not because of their innocence, but because of His sovereign mercy and the finished work of Christ. As Romans 9:15 reminds us, “I will have mercy on whom I will have mercy, and I will have compassion on whom I will have compassion.”

While this hope is comforting, it must not lead to complacency. The call remains clear: we must teach children the gospel diligently. Salvation is not automatic by age or innocence; it comes by grace through faith in Jesus Christ alone.

So, while it may be emotionally appealing to think that all babies automatically go to heaven because they have not sinned knowingly, the Bible teaches us to weigh this hope within the full scope of Scripture’s teaching on sin, grace, and mercy. The sin nature begins before birth, but so does God’s mercy. And that mercy, grounded in Christ’s sacrifice, offers hope beyond what we can fully comprehend.


Key Bible References

Psalm 51:5

Romans 5:12

Jeremiah 1:5

Luke 1:41

Isaiah 7:16

Romans 3:11

Romans 3:23

Proverbs 22:6

2 Samuel 12:23

Psalm 103:13

Matthew 18:10

Romans 9:15

Sources: 
Grudem, Wayne. Systematic Theology: An Introduction to Biblical Doctrine. Zondervan, 1994.

Sproul, R.C. Everyone’s a Theologian: An Introduction to Systematic Theology. Reformation Trust Publishing, 2014.

The Holy Bible, New Living Translation. Tyndale House Publishers, 2015.

The Holy Bible, New International Version. Biblica, 2011.

The Holy Bible, English Standard Version. Crossway, 2016.


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