What does it mean to believe in Jesus according to the sermon?

Belief in Jesus, as outlined in the sermon, transcends mere intellectual agreement about His existence or His works. It is an acknowledgment of Him as sovereign Lord, emphasizing a relational trust that Jesus is who He says He is and that He alone can effectuate salvation. The father of the child in Mark 9 exemplifies this when he moves from merely seeking help to recognizing Jesus' authority, ultimately declaring, 'Lord, I believe; help thou my unbelief.' This shift illustrates that true saving faith is characterized by a deep conviction that we can do nothing apart from Christ; it is solely through Him that we obtain mercy and redemption.