The point is both water baptism in Jesus' name and the infilling of the Holy Ghost are necessary. Also, it does not matter which one comes first. This is clearly seen in scripture:
Acts 8:12-17 (Water baptism in Jesus' name than Holy Ghost), 10:44-48 (Holy Ghost than Water baptism in Jesus' name), 19:2-6 (Water baptism in Jesus' name than Holy Ghost)
How was the dude on the cross baptized?
Why does Eph 2:8-9 not refer to baptism?
Why did Paul Baptise so few people?
101 Reasons Why Water Baptism is Not Necessary to be Saved
Many verses emphasize salvation by grace through faith without mentioning water baptism:
1. John 1:12
2. John 3:14-18, 36 (whoever)
3. John 5:24
4. John 6:29-40, 47, 69 (whoever, everyone)
5. John 11:25-26 (whoever)
6. John 12:46-50 (whoever)
7. John 16:7-9 (not believe)
8. John 17:20-22
9. John 20:31
10. Acts 2:21,33 (everyone)
11. Acts 10:43-48 (whoever, water baptism follows belief and Holy Spirit’s work of salvation)
12. Acts 13:38-39, 48 (everyone)
13. Acts 15:8-11
14. Acts 16:30-31 (answer to a direct question: What must I do to be saved?)
15. Acts 26:18
16. Romans 1:16 (everyone)
17. Romans 3:20-31 (all who believe)
18. Romans 4:1-11
19. Romans 4:23-25
20. Romans 5:1-21
21. Romans 9:30-33 (whoever)
22. Romans 10:4-13 (everyone, whoever)
23. Galatians 2:15-21, Galatians 3:1-28 (whoever, baptism secondary to faith)
24. Galatians 5:5-6
25. Ephesians 2:8-10
26. Philippians 3:4-14
27. 2 Thessalonians 2:16-17
28. Hebrews 4:2-3
29. 1 Peter 2:6
30. 1 John 1:5-10
31. 1 John 4:15 (God abides in whoever confesses Christ)
32. 1 John 5:1, 10-13 (whoever)
33. Other verses mention belief without water baptism: Luke 7:50; John 2:11, 23; John 4:39, 41; John 7:38-39; John 8:30-32; John 9:35-36; John 10:42; John 11:45, 48; John 12:11, 42-44; John 14:1, 12; John 20:31; Acts 14:23; Acts 20:21; Romans 15:13; Philippians 1:29; Titus 3:8. There nine instances of conversion in the book of Acts without reference to baptism: Acts 3:1-4:4, Acts 5:1-14, Acts 9:32-35, Acts 11:19-24, Acts 13:6-12, Acts 13:42-52, Acts 14:1, Acts 17:10-12, Acts 17:22-34. Did the authors miss the opportunity to mention baptism in these many passages if it is so important?
34. Many of the above verses use the language “whosoever” (King James) or “whoever” or “everyone” who believes. This language is all-encompassing. That is, by the language of the text nothing else is required for salvation except faith. Thus, in addition to not mentioning water baptism, the all-encompassing language of whoever precludes other requirements. SO HERE WE HAVE THE THESIS OF SALVATION BY GRACE THROUGH FAITH DEMONSTRATED IN THE AFFIRMATIVE.
35. Further, many verses specifically preclude works as a way to salvation: Acts 13:39; Romans 3:20, 28; Galatians 2:15-17; Ephesians 2:9; 2 Timothy 1:9; Titus 3:5; Philippians 3:8-9 (“everything”), etc. Others say that we cannot boast before God—a similar concept (Romans 3:27; 1 Corinthians 1:29).
Note: some of these passages could be construed to mean we are not saved by the Law of Moses—the Old Testament law— leaving open that other works (“laws of Christ”) are necessary for salvation. However, other passages clarify that “works” are any works. See Romans 3:20-27 (clearly speaking of moral law--sin and righteousness--thus broader than ceremonial law of Moses); Galatians 2:21, Galatians 3:21-22 (“if a law”); Galatians 3:25 (no longer a guardian law); Titus 3:5. And please consider Romans 13:10 in Young's Literal Translation: "Love therefore is the fulness of law." Note that in the Greek there is no "the" in front of "law," making law a general term and not a reference to Old Testament law. So Paul is making a general case that we are not saved by works of any kind. Jesus himself explains in John 6:27-29 that the “work” we must do is to believe. Thus we are not saved by what we do; we cannot get to heaven by what we do. HERE WE HAVE THE THESIS OF GRACE THROUGH FAITH DEMONSTRATED IN THE NEGATIVE.
36. Baptism in the Bible typically follows one’s saving faith as an act of obedience after being saved. Examples: Acts 2:41 and 10:44-48.
37. We listed numerous passages that say that forgiveness of sins comes with faith. There are also passages that indicate that forgiveness of sins is associated with repentance (without mention of water baptism), for example Mark 1:15; Luke 24:47; Acts 3:19; Acts 5:31; Acts 19:4; Acts 20:21; 2 Corinthians 7:10.
38. Faith and repentance are closely associated. They are like two sides of the same coin. You cannot turn toward Christ without turning away from sin. So the command to non-Christians is to repent and believe. All other commands to obedience in the New Testament, including water baptism, are to people who are already Christians.
39. Having pointed out the above, we must clarify that the type of faith that saves is one that is obedient. Ephesians 2:8-10 confirms that we are saved by grace through faith and not of our own doing, but through a faith that results in good works. James 2 confirms that we cannot be saved by a “dead” faith. Thus we are saved by a living faith. Someone who has a genuine faith will seek to conform their life to the will of God. Ephesians 2 confirms that even faith itself is a gift of God. Yet a living faith is still faith. Faith expressed is still faith. We would question whether a person who refused water baptism has a genuine (living) faith. A person who had received a saving faith would want to be obedient, thus would be baptized, not for salvation but because of it.
http://www.faithfacts.org/world-rel...1-reasons-baptism-not-necessary-for-salvation