How do we know that Stephen was a true witness for Christ?

Stephen's authenticity as a witness for Christ is underscored by his being 'full of the Holy Spirit' as he addressed the council. He articulated the history of Israel in relation to God's redemptive plan, culminating in the presentation of Jesus as the Messiah. His ability to forgive those who were stoning him, echoing the words of Jesus from the cross, reveals the transformation that faith in Christ brings to a believer's heart. This unwavering commitment to the truth, even unto death, solidifies his role as a faithful witness in the early church, inspiring future generations to stand firm in their faith amidst trials.