How do we know we are born of God according to 1 John?

In 1 John, being born of God is evidenced by a faith that perseveres and does not succumb to apostasy. The assurance of being a child of God comes through the recognition of Christ as Savior and the transformation that results from this belief. The new birth, as described in the context of the entire epistle, shows that genuine believers will remain steadfast in their faith, a persistence maintained through God's grace. The true gospel creates and nurtures this faith, distinguishing believers from the world that lies under wickedness.