How do we know children can be saved according to the Bible?

Scripture reinforces the idea that children, however young, are indeed capable of receiving salvation. Jesus' words in Luke 18 imply that the kingdom of God is accessible to children, indicating their ability to enter it. Furthermore, the reality that countless children die before reaching the age of accountability does not preclude their salvation, as Romans 5:20 assures us that where sin abounds, grace much more abounds. Therefore, we can have confidence that many children who die in infancy will be in glory.