But the Gentiles were saved before water baptism so water baptism is not the means for the remission of sins, but repenting from unbelief by believing in Jesus Christ is for both parties; the Jews & the Greek.
Water baptism is an ordinance for new believers in taking the first step in being His disciples in following Him. It cannot be for salvation.
In Acts 8:12-17, these "potential believers" believed in the "things" Philip was preaching about but were following him around out of fanfare to see all the miracles supposedly seen by the people as coming from him. They were not coming to & believing in Jesus Christ but to Philip to see miracles. That was why they had not received the promise of the Holy Spirit even though they were water baptized in Jesus's name.\
Acts 8:12 But when they believed Philip preaching the things concerning the kingdom of God, and the name of Jesus Christ, they were baptized, both men and women. 13 Then Simon himself believed also: and when he was baptized, he continued with Philip, and wondered, beholding the miracles and signs which were done. 14 Now when the apostles which were at Jerusalem heard that Samaria had received the word of God, they sent unto them Peter and John: 15 Who, when they were come down, prayed for them, that they might receive the Holy Ghost: 16 (For as yet he was fallen upon none of them: only they were baptized in the name of the Lord Jesus.)
Romans 8:9 But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his.
So water baptism did not bring remission of sins for these sinners when they were only potential believers in Jesus Christ.
Nothing in the context says the Gentiles were saved prior to being water baptized for remission of sins.
---Acts 11 Peter says the Gentiles would be saved by "words" and those saving words included the command to be water baptized which is the "like manner way" (Acts 15:11) Jew and Gentile are saved. The Jews in Acts 2 were water baptized, not baptized with the Holy Spirit so baptism with the Holy Spirit is not the "like manner way" Jews in Acts 2 and Gentiles Acts 10 were saved.
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---the Jews tho't salvation was only for them, not the Gentiles, since the Jews were the descendants of Abraham. The reason God 1) gave Peter a vision and 2) baptized the Gentiles with the HS and they spoke in tongues was to
prove to the Jew salvation was also for the "clean" Gentiles. Acts 11:1 Peter was criticized by the Jews in Jerusalem for going to the Gentiles. Peter retells those Jews the events that took place in Acts 10 including the vision and the Gentles having the HS fall upon them. The result of God doing these two things convinced the Jews salvation was to go to the Gentiles..."
When they (Jews in Jerusalem) heard these things (vision & baptism w/HS), they held their peace, and glorified God, saying, Then hath God also to the Gentiles granted repentance unto life." (Acts 11:18). So baptism with the HS had nothing to do with the personal salvation of Cornelius but baptism with the HS was God proving to the Jew salvation was also for the Gentile.
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---in Acts 11 when Peter was explaining to the Jews in Jerusalem why he went to the Gentiles "
Peter rehearsed the matter from the beginning, and expounded it by order unto them," (Acts 11:4). Hence Peter told the events of Acts 10 to the Jews in Jerusalem "
by order" as those events happened. In Acts 11:14-15 Peter then says "
Who shall tell thee words, whereby thou and all thy house shall be saved. And as I began to speak, the Holy Ghost fell on them, as on us at the beginning." Peter says in v15 as he
BEGAN to speak those saving words of v14 the HS fell upon them. So Cornelius had not even heard those saving words yet when the HS fell upon him. So again, baptism with the HS had nothing to do with the personal salvation of Cornelius, it was water baptism by which he would be saved, it was water baptism commanded to him, not baptism with the HS. Water baptism remits sins, baptism with the HS does not for it did not save Cornelius nor were the Jews in Acts 2 baptized with the HS but water baptism.
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---Water baptism has been commanded to man so man is culpable for failing to obey that command. Baptism with the HS is not command so it cannot be obeyed. Only God administers baptism with the HS therefore if one as not been baptized with the HS that would be God's culpability. Yet God has no culpability because baptism with the HS does not remit sin.....that baptism has been obsolete for some 2000 years. So the verse you cite from Romans 8:9 has NOTHING to do with baptism with the HS. Ephesians 4:4-5 there is
ONE baptism in effect today and that is water baptism in the name of Jesus Christ for remission of sins that last till the end of the world (Matthew 28:19-20).
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--- "
In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:" (2 Thessalonians 1:8)
Some observations about this verse:
--those who "
obey not" will be in flaming fire, therefore salvation
REQUIRES obedience to be saved, not faith only
--to be saved (not be in flaming fire) one must
obey the gospel of Christ.
But one must first know what the gospel is before that can obey it.
--Paul said the gospel he preached was the
death burial and resurrection of Christ (1 Corinthians 15:1-4)
Since one must obey the gospel and the gospel is the death burial and resurrection of Christ, then how does one go about obeying those historical events?
Romans 6:3-7 when one is water baptized the old man of sin
DIES, one is "
BURIED" in a watery grave from which one is "
RAISED UP FROM". So there is a
death, burial and resurrection that takes place when one is water baptized, hence water baptism is
HOW one goes about obeying the gospel of Christ per 2 Thessalonians 1:8. There is
not a death, burial or resurrection that takes place with any Spirit baptism or with a 'sinner's prayer' or with faith only so these things are NOT how obeying the gospel is done.