Why is the concept of the datum important in Christian theology?

The sermon emphasizes the concept of 'datum'—the starting point of any inheritance or understanding in theological terms. This is represented as Christ Himself, the 'datum' of the gospel, who stands as the cornerstone of our faith. The notion that God has a starting point gives structure to the Gospel; without it, one risks deviating into heresy or misunderstanding the essential truths of scripture. The datum is not just a marker but is integral for maintaining a correct understanding of God's promises and our place within His plan. As stated in 1 Peter 1:18-20, our redemption through Christ was established before the foundation of the world, reinforcing the necessity of Christ as our central point.