How do we know the sovereignty of God in salvation?

God's sovereignty in salvation is illustrated throughout scripture, such as in John 3, where Jesus explains the necessity of being born of the Spirit to Nicodemus. This new birth is not initiated by human effort but is a sovereign act of God. Faith, often misunderstood as a human contribution to salvation, is actually a gift from God given after regeneration. Passages like Ephesians 2:8 affirm that 'by grace you have been saved through faith, and that not of yourselves; it is the gift of God,' emphasizing that our salvation rests entirely in God’s sovereign choice and work.