What does the Bible say about God's promise to Christ?

The promise of God to Christ encompasses His appointment as King and Priest. Psalm 110 declares, 'The Lord said unto my Lord, Sit thou at my right hand until I make thine enemies thy footstool.' This indicates a divine decree establishing Christ as sovereign over all creation and giving Him authority to rule. Furthermore, the eternal covenant confirms that Christ would possess a people—those chosen before the foundation of the world—who would willingly come to Him in the day of His power, fulfilling the Father’s promise.