Who goes to heaven according to the Bible?

Scripture clearly teaches that entrance into heaven is reserved for those written in the Lamb's Book of Life, as noted in Revelation 21:27: 'And there shall no wise enter into it anything that defileth.' This underscores the importance of divine election and grace; believers trust solely in Christ’s redemptive work as their qualification for heaven. Those who are saved have been chosen before the foundation of the world, and it is through faith in Jesus alone that they are assured of their place in eternity. This reinforces the sovereign grace doctrine, emphasizing that salvation is not based on our deeds but on God's mercy and Christ's righteousness.