How do we know God gives us faith?

Romans 10:17 states that faith comes by hearing, and hearing by the word of God, which suggests that it is God who uses His word to impart faith to His elect. Additionally, James 1:17-18 indicates that every good gift, including the gift of faith, comes down from the Father of lights. This shows that we cannot conjure faith ourselves; it is a divine work initiated by God. The experiences of believers—such as a heart transformed and deep-rooted love for Christ—further authenticate that God is the source of true faith.