How do we know that infants who die go to heaven?

While Scripture does not explicitly state that all infants who die go to heaven, there are compelling indications that suggest this belief. Observations from 2 Samuel 12:22-23 showcase David's understanding that he would reunite with his deceased child, implying the child's presence with the Lord after death. In addition, Jonah 4:11 points to God's compassion for those who cannot discern between right and wrong, supporting the idea that God protects and saves those incapable of conscious moral decision-making, including infants. Ultimately, the belief rests on the sovereign grace of God, who chooses to save based not on merit but on His mercy.