A common objection raised against Christianity and the character of God is, "How can it be fair for God to send people to be punished in hell for all eternity?" Is eternal punishment in a place like hell overkill for temporal sins committed in this life? It's a good bet that a lot of people would answer, "Yes!" but what matters most is what God's Word has to say on the matter. The Bible teaches that while God is all good, He is also fully just, and His justice includes the existence of hell as a place of eternal punishment for those who reject Him. Though hell was originally prepared for the devil and his angels, it now also includes those who choose to rebel by rejecting Christ. God does not force anyone into hell—people go there by their own decision to turn away from the salvation offered through Jesus. An eternal hell is consistent with God’s justice, sovereignty, and the dignity of human choice, and it underscores the seriousness of sin against an eternal Creator. The cross of Christ powerfully reveals the reality of hell since Jesus bore its punishment to offer us eternal life instead.
Regarding how a loving God can send people to hell, we should understand two things. The first is the distinction between what is sometimes called the "antecedent" and "consequent" will of God. Thomas Aquinas explains the important difference between the two this way: "Hence it may be said of a just judge, that antecedently he wills all men to live; but consequently wills the murderer to be hanged. In the same way God antecedently wills all men to be saved, but consequently wills some to be damned, as His justice exacts." To people wanting to live in rebellion apart from God, hell might seem unfair. So why is eternity in hell fair according to God?
God's character demands an eternal hell. Only an eternal punishment is fitting for sins committed against an eternal God. Even in this life, it is recognized that a crime must be gauged according to the worth and dignity of the person it is committed against. As an example, if a person threatens someone's life, it is not uncommon for the authorities to tell the victim they cannot act until the suspect does. But let that same individual make a threat against the President of the United States, and the law will be much swifter, more exacting, and harsher. Because all sin is vertical before it is horizontal, an eternal punishment is fitting for crimes perpetrated against an everlasting Creator.
God's justice demands an eternal hell. It is a fact that not all evil is punished in this life, so a punishment in the next life – which is eternal – must exist.
God's sovereignty demands an eternal hell. Without hell, there would be no final victory over evil.
Human dignity demands an eternal hell. A person can willingly choose to follow or reject God, knowing what consequences await. God respects the person's dignity in allowing him to make that choice.
The cross of Christ implies an eternal hell. Why would Christ suffer and endure all that He did if there is not an unthinkable punishment awaiting those who sin against God? If there is no hell, then there is no need for a cross or a Savior. But hell is very real, and as Christian author Os Guinness says, "For some, Hell is simply a truth realized too late." It is a sobering fact that those who choose to reject Jesus in this life will have their request honored in the next by a loving God who will indeed acquiesce to their wishes and send them to the choice they themselves have made.