What does the Bible say about the expounding of Scriptures?

In Luke 24:27, we see that Jesus began at Moses and all the prophets to expound to the disciples the things concerning Himself. This highlights the centrality of Christ in the Scriptures and emphasizes that the Old Testament is replete with typologies and prefigurations of His person and work. In essence, the Scriptures function as a narrative that leads to Christ, and to rightly understand them, we must see His presence throughout the entirety of holy writ. The act of expounding requires a thorough understanding and clear communication of their meaning, which is exactly what Christ provided on the road to Emmaus.