Can a Christian lose their salvation?

The question of whether a Christian can lose their salvation is addressed by understanding the nature of salvation itself. Salvation is not achieved through human effort or decision but is secured by God through Jesus Christ, who has all authority in heaven and earth (Matthew 28:18). As articulated in John 17, Jesus promises that none of those whom the Father has given Him will be lost. Therefore, true salvation depends on Christ's ability to preserve His people, not on the fickleness of human faith. Hence, those genuinely saved possess a salvation that is eternal and unassailable by human failing.