How do we know that Jesus prayed for His people?

In John 17, Jesus clearly distinguishes between 'the world' and 'His people,' stating, 'I pray for them, not for the world' (John 17:9). This reveals the specific and intentional nature of His intercessory prayer. He affirms that those He prays for are given to Him by the Father, indicating a particular love and commitment to His elect. The assurance that Jesus prays for His people underscores the certainty of their salvation, as His prayers are always aligned with the will of God and effectual for those He represents.