To preach Christ is to set forth the person, the facts of His life and death, and to accompany these with that explanation which turns them from being merely a biography into a gospel. So much of "theory" must go with the "facts," or they will be no more a gospel than the story of another life would be. The Apostle's own statement of "the gospel which he preached" distinctly lays down what is needed--"how that Jesus Christ died." That is biography, and to say that and stop there is not to preach Christ; but add, "For our sins, according to the Scriptures, and that He was raised again the third day,"--preach _that_, the fact and its meaning and power, and you will preach Christ.
Of course there is a narrower and a wider sense of this expression. There is the initial teaching, which brings to a soul, who has never seen it before, the knowledge of a Saviour, whose Cross is the propitiation for sin; and there is the fuller teaching, which opens out the manifold bearings of that message in every region of moral and religious thought. I do not plead for any narrow construction of the words. They have been sorely abused, by being made the battle-cry for bitter bigotry and a hard system of abstract theology, as unlike what Paul means by "Christ" as any cobwebs of Gnostic heresy could be. Legitimate outgrowths of the Christian ministry have been checked in their name. They have been used as a cramping iron, as a shibboleth, as a stone to fling at honest and especially at young preachers. They have been made a pillow for laziness. So that the very sound of the words suggests to some ears, because of their use in some mouths, ignorant narrowness.
But for all that, they are a standard of duty for all workers for God, which it is not difficult to apply, if the will to do so be present, and they are a touch-stone to try the spirits, whether they be of God. A ministry of which the Christ who lived and died for us is manifestly the centre to which all converges and from which all is viewed, may sweep a wide circumference, and include many themes. The requirement bars out no province of thought or experience, nor does it condemn the preacher to a parrot-like repetition of elementary truths, or a narrow round of commonplace. It does demand that all themes shall lead up to Christ, and all teaching point to Him; that He shall be ever present in all the preacher's words, a diffused even when not a directly perceptible presence; and that His name, like some deep tone on an organ, shall be heard sounding on through all the ripple and change of the higher notes. Preaching Christ does not exclude any theme, but prescribes the bearing and purpose of all; and the widest compass and richest variety are not only possible but obligatory for him who would in any worthy sense take this for the motto of his ministry, "I determined not to know anything among you, save Jesus Christ and Him crucified."
But these words give us not only the theme but something of the manner of the Apostle's activity. "We _proclaim_." The word is emphatic in its form, meaning _to tell out_, and representing the proclamation as full, clear, earnest. "We are no muttering mystery-mongers. From full lungs and in a voice to make people hear, we shout aloud our message. We do not take a man into a corner, and whisper secrets into his ear; we cry in the streets, and our message is for 'every man.'"
And the word not only implies the plain, loud earnestness of the speaker, but also that what he speaks is a _message_, that he is not a speaker of his own words or thoughts, but of what has been told him to tell. His gospel is a good message, and a messenger's virtue is to say exactly what he has been told, and to say it in such a way that the people to whom he has to carry it cannot but hear and understand it.