How do we know that salvation is available until the end of life?

The case of the dying thief, who turned to Christ while hanging on the cross, demonstrates that salvation is accessible at the final moments of life. In Luke 23:42-43, the thief requests Jesus to remember him in His kingdom, and Jesus responds with the assurance that he would be with Him that day in paradise. This shows that as long as there is life, there is hope for salvation. It points to God's mercy that transcends the depth of our sin, affirming that no one is ever beyond the reach of His grace until their final breath.