8:26-40 Philip was directed to go to a desert. Sometimes God opens a door of opportunity to his ministers in very unlikely places. We should study to do good to those we come into company with by travelling. We should not be so shy of all strangers as some affect to be. As to those of whom we know nothing else, we know this, that they have souls. It is wisdom for men of business to redeem time for holy duties; to fill up every minute with something which will turn to a good account. In reading the word of God, we should often pause, to inquire of whom and of what the sacred writers spake; but especially our thoughts should be employed about the Redeemer. The Ethiopian was convinced by the teaching of the Holy Spirit, of the exact fulfilment of the Scripture, was made to understand the nature of the Messiah's kingdom and salvation, and desired to be numbered among the disciples of Christ. Those who seek the truth, and employ their time in searching the Scriptures, will be sure to reap advantages. The avowal of the Ethiopian must be understood as expressing simple reliance on Christ for salvation, and unreserved devotion to Him. Let us not be satisfied till we get faith, as the Ethiopian did, by diligent study of the Holy Scriptures, and the teaching of the Spirit of God; let us not be satisfied till we get it fixed as a principle in our hearts. As soon as he was baptized, the Spirit of God took Philip from him, so that he saw him no more; but this tended to confirm his faith. When the inquirer after salvation becomes acquainted with Jesus and his gospel, he will go on his way rejoicing, and will fill up his station in society, and discharge his duties, from other motives, and in another manner than heretofore. Though baptized in the name of the Father, Son, and Holy Ghost, with water, it is not enough without the baptism of the Holy Ghost. Lord, grant this to every one of us; then shall we go on our way rejoicing.
39, 40. the Spirit of the Lord caught away Philip—To deny [as Meyer, Olshausen, Bloomfield] the miraculous nature of Philip's disappearance, is vain. It stands out on the face of the words, as just a repetition of what we read of the ancient prophets, in 1Ki 18:12; 2Ki 2:16. And the same word (as Bengel remarks) is employed to express a similar idea in 2Co 12:2, 4; 1Th 4:17.
the eunuch saw him no more—nor, perhaps, for very joy, cared to see him [Bengel].
and he went on his way rejoicing—He had found Christ, and the key to the Scriptures; his soul was set free, and his discipleship sealed; he had lost his teacher, but gained what was infinitely better: He felt himself a new man, and "his joy was full." Tradition says he was the first preacher of the Gospel in Ethiopia; and how, indeed, could he choose but "tell what the Lord had done for his soul?" Yet there is no certainty as to any historical connection between his labors and the introduction of Christianity into that country.