Proclaiming the Message
God has chosen to use proclaiming the message (heralding) of the Gospel as the means by which it is spread to the world.
Therefore, how will they call upon whom they do not believe? And how will they believe whom they have not heard? And how will they hear apart from one proclaiming? Romans 10:14
For since by the wisdom of God, the world through wisdom does not know God, it pleased God through the foolishness of proclaiming to save the ones believing, 1 Corinthians 1:21
The Importance of Proclaiming the Correct Message
The Holy Spirit is convicting people of one sin today. That is, the sin of not believing in Christ.
And when He comes, He will convict the world concerning sin, and concerning righteousness, and concerning judgment. On the one hand concerning sin because they do not believe in Me, on the other hand, concerning righteousness because I go to My Father, and you will no longer watch me, and concerning judgment because this world has been judged, John 16:8-11
The message has the inherent ability to save.
For I am not ashamed of the Gospel of The Christ, for it is the natural ability of God unto salvation to all the ones believing… , Romans 1:16
The Gospel for Salvation
And I made known to you, brethren, the gospel which I gospelized to you, which also you received, in which also you stand, through which also you are saved, by that word I gospelized to you, since you hold fast, unless you believed without an object. For I delivered to you at first that which also I received, that Christ died concerning your sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures, 1 Corinthians 15:1-4
*gospelized – means to bring good news.