How do we know that the doctrine of Christ as heir is true?

The doctrine of Christ as the appointed heir is substantiated by Scripture, particularly in the book of Hebrews. Hebrews 1:2 clearly articulates this truth, describing how God spoke to humanity through His Son, whom He appointed as heir of all things. Additionally, this belief is reinforced by Jesus' divine attributes, such as His eternal nature and sovereignty. He is not simply an heir by inheritance in a human sense; rather, He is inherently entitled to all that the Father possesses. Thus, the unchanging, sovereign God has declared Christ as heir, making this a fundamental doctrine of the faith.