How do we know Christ is the author and finisher of our faith?

The declaration in Hebrews 12:2 that Christ is the 'author and finisher of our faith' rests on the belief that He initiated our faith and will bring it to completion. This encompasses the entirety of salvation—from God’s electing grace to the final realization of glory. The term 'author' signifies that Christ is the source of our faith; we are enabled to believe through His grace and the work of the Holy Spirit. Meanwhile, 'finisher' indicates that He will also perfect our faith, guiding us through our sanctification until we reach our final state of glory. This theological understanding is entrenched in the doctrines of sovereign grace that affirm that all that is needed for salvation and perseverance comes through Christ alone.