Why is the preaching of Christ essential for salvation?

The preaching of Christ is vital for salvation as it is through the Word that God chooses to reveal His Son to the hearts of His people. The sermon notes highlight that the two disciples on the road to Emmaus were initially oblivious to Christ's presence until He began to explain the Scriptures concerning Himself. Christian salvation is not about human introspection or effort; rather, it is mediated through the preached Word, through which believers come to know of Christ’s finished work and the fullness of His grace in their lives. The Pauline understanding is clear: God uses the simplicity of preaching to confound the wise and to save those who believe.