How do we know that Christ is sovereign for salvation?

In the sermon, it is made clear that Christ is not merely a title but the fullness of divinity manifested in human form. This sovereignty is underscored by His creation of all things and His ultimate authority over salvation. John 1 declares that everything was made through Him, making Him the sovereign creator who works all things for the good of His people. Furthermore, His role as both the beginning and the end, as stated in Revelation 1:8, affirms that He is the author and finisher of our faith, leading to the understanding that salvation rests entirely in His sovereign will and purpose.