How do we know that Christ's sacrifice was sufficient for redemption?

The sufficiency of Christ's sacrifice for redemption is grounded in His role as both our kinsman and redeemer. As described in the New Testament, specifically in Hebrews and 1 Peter, Christ’s sacrifice was 'without blemish and without spot,' indicating its divine perfection and acceptance by God. Furthermore, His blood not only redeems but purifies, as seen in Titus 2:14, where it states that He gave Himself to redeem us from all iniquity. This sacrificial act was ordained before the foundation of the world, ensuring that it was the definitive means by which God accomplishes our salvation, confirming its sufficiency and effectiveness for all who believe.