In 1 John 5:1-13, John writes to believers who were shaken by false teachers, spiritual confusion, and internal doubts, reminding them that nothing matters more than knowing they possess eternal life. In this passage, he gives three clear marks of eternal life, reveals God’s own testimony about His Son, and offers believers unshakable assurance. This message calls every listener to move from “I hope so” to “I know so,” because God Himself has spoken.