How do we know that salvation is for Christ's sake alone?

The essence of sovereign grace theology asserts that salvation is granted purely for Christ's sake. Ephesians 1:4-5 highlights that God chose us in Christ before the foundation of the world, emphasizing that our adoption and status before God are rooted in His grace toward His beloved Son. It outlines that our acceptance is not based on our merits but entirely on what Christ accomplished. His righteousness is the sole basis for our justification, allowing believers to rest assured in the hope of glory, rooted in God's sovereign will and purpose.