Acts 8:36

36. "And as they went along the road, they came to certain water. And the eunuch said, What hinders me to be immersed?" The appearance of the water to which they had come suggested this question, but it could not have been done so unless the eunuch had been taught something concerning immersion as a religious ordinance. But he had enjoyed no opportunity for instruction on this subject, except through the teaching of Philip. Had Philip, then, preached him a sermon on immersion? No. Luke says Philip "preached to him Jesus." How, then, had he, while hearing Jesus preached, obtained instruction in reference to immersion? There is only one answer to this question. It is, that to preach Jesus, after the apostolic method, involves full instruction upon the subject of immersion. The prejudice, therefore, which exists at the present day against frequent introduction of this subject in discourses addressed to sinners, is altogether unscriptural; and those only preach Jesus correctly who give to it the same prominence which belongs to it in apostolic discourses. It was a part of Peter's sermon on Pentecost, of Philip's preaching to the Samaritans, and of his present discourse to the Ethiopian; and we will yet see, in the course of this commentary, that it always occupied a place in the preaching of inspired men on such occasions. Indeed, it would be impossible to preach Jesus fully without it. For the beginning of the gospel, historically, according to Mark, is the immersion of John, to which Jesus submitted, and near the conclusion of it is the commission given in the last words of Jesus on earth, commanding every believer to be immersed. Thus he who preaches Jesus has immersion in the beginning and in the end of his sermon.