For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.
The consequences of belief are new birth (John 3:3; John 3:5), eternal life (John 3:15-16), and salvation (John 3:17). The alternative is perishing (John 3:16; cf. John 10:28), losing one’s life (John 12:25), and destruction (John 17:12). To perish (Gr. apoletai) does not mean to experience annihilation but ruin, failure to realize God’s purpose, and exclusion from His fellowship. The only alternatives are life or perishing; there is no other final state.