How do we know the gift of faith is true?

In Ephesians 2:8-9, we learn that faith is not a product of our own efforts or merits, but rather a gift from God. This reflects the sovereign grace of God in the lives of His elect. As believers, we understand that our capacity to believe is enabled by God's grace, leading us to rely entirely on His work in our lives. The assurance of this doctrine is found throughout the New Testament where the transformative power of faith is rooted in God's choice and the redemptive work of Christ, making it an essential truth of the Christian faith.