And as they went on their way, they came unto a certain water: and the eunuch said, See, here is water; what doth hinder me to be baptized?

People's New Testament

8:36 They came unto a certain water. The locality of the baptism is not certain. There are several roads from Jerusalem to Gaza. The one by Hebron is through desert more than the others. Eusebius and Jerome state that the baptism occurred at a perennial stream, coming from a fountain at Bethsur, not far from Hebron. Robinson places the baptism not far from Gaza, at the old site of Eglon.

See, here is water. The Greek is, Behold! Water ! As if his soul was filled with joy that he could obey.

What doth hinder me? Nothing, if he was a believer and the means were at hand.

Wesley's Notes

8:36 And as they went on the way they came to a certain water - Thus, even the circumstances of the journey were under the direction of God. The kingdom of God suits itself to external circumstances, without any violence, as air yields to all bodies, and yet pervades all. What hindereth me to be baptized? - Probably he had been circumcised: otherwise Cornelius would not have been the first fruits of the Gentiles.

Jamieson-Fausset-Brown Bible Commentary

36. See, here is water-more simply, "Behold water!" as if already his mind filled with light and his soul set free, he was eagerly looking out for the first water in which he might seal his reception of the truth and be enrolled among the visible disciples of the Lord Jesus.

what doth hinder me to be baptized?-Philip had probably told him that this was the ordained sign and seal of discipleship, but the eunuch's question was likely the first proposal of its application in this case. (Ac 8:37 is wanting in the principal manuscripts and most venerable versions of the New Testament. It seems to have been added from the formularies for baptism which came into current use).

Matthew Henry's Concise Commentary

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.