What does the Bible say about knowing we are saved?

In 1 John 5:18-20, the Apostle John emphasizes the certainty of salvation for those who are born of God. He uses the phrase 'we know' multiple times to affirm that believers can have confidence in their salvation. This knowledge is not based on personal merit or uncertainty but on the work of Christ in their hearts. Being born of God means that one's life is transformed, and there is a new nature that desires to follow Christ. John teaches that this assurance is a divine gift, ensuring that those who have faith in Christ are indeed secure in their salvation.