How do we know eternal salvation is true?

The assurance of eternal salvation is rooted in the work of Jesus Christ, who fulfilled the law and provided a way for His people to be reconciled to God. As stated in Acts 4:12, 'Neither is there salvation in any other, for there is none other name under heaven given among men, whereby we must be saved.' This indicates that salvation is entirely through Christ's sacrificial death and resurrection, and not by human effort or merit. Romans 8:38-39 further reassures believers that nothing can separate them from the love of God, affirming that salvation is secure for those whom God has chosen and redeemed.