How do we know Jesus is the only way for salvation?

In John 17:9, Jesus says, 'I pray for them; I pray not for the world, but for them which thou hast given me; for they are thine.' This verse emphasizes the exclusivity of Christ's redemptive work for those chosen by God. The focus on His intercession for a particular people illustrates that salvation is a work centered in Christ alone. Furthermore, throughout Scripture, the consistent theme reflects that belief in Jesus is the only path to Godliness, aligning with the sovereign grace doctrine that emphasizes election and divine mercy.