How do we know that salvation comes through faith?

Salvation comes through faith, not as a result of our works, but as a result of God's prior work in us. As stated in Romans 4:5, 'And to the one who does not work but believes in him who justifies the ungodly, his faith is counted as righteousness.' This indicates that our ability to trust in God arises only after He has saved us. Faith is not the cause of salvation but rather a result of it, affirming that God’s choice, grace, and Christ's finished work are at the center of our salvation.