2Th 2:13 But we are bound to give thanks alway to God for you, brethren beloved of the Lord, because God hath from the beginning chosen you to salvation through sanctification of the Spirit and belief of the truth:
We are 'chosen' for 'salvation' and 'belief.'
The Gospel isn't, 'get baptized and be saved' but believe and be saved it's about belief in Christ Jesus. Paul said: For Christ did not send me to baptize, but to preach the gospel...
Quote: Paul said that he came to preach the gospel, not to baptize: "I am thankful that I did not baptize any of you except Crispus and Gaius, so no one can say that you were baptized into my name. (Yes, I also baptized the household of Stephanas; beyond that, I don't remember if I baptized anyone else.) For Christ did not send me to baptize, but to preach the gospel..." (1 Cor. 1:14-17). If baptism is necessary for salvation then why did Paul downplay it and even exclude it from the it from the description of what is required for salvation? It is because baptism isn't necessary for salvation.
Additionally, in Acts, Peter was preaching the gospel, people got saved, and then they were baptized. Acts 10:44-46 says, "While Peter was still speaking these words, the Holy Spirit came on all who heard the message. The circumcised believers who had come with Peter were astonished that the gift of the Holy Spirit had been poured out even on the Gentiles. For they heard them speaking in tongues and praising God. Then Peter said, ‘Can anyone keep these people from being baptized with water? They have received the Holy Spirit just as we have.' So he ordered that they be baptized in the name of Jesus Christ. Then they asked Peter to stay with them for a few days" (NIV). These people were saved. The gift of the Holy Spirit was on the Gentiles and they were speaking in tongues. This is significant because tongues is a gift given to believers, see 1 Cor. 14:1-5. Also, unbelievers don't praise God. They can't because praise to the true God is a deep spiritual matter that is foreign to the unsaved (1 Cor. 2:14). Therefore, the ones in Acts 10 who are speaking in tongues and praising God are definitely saved and they are saved before they are baptized. This simply isn't an exception. It is a reality.
Quote: Acts 2:38, "Peter replied, ‘Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit.‘" This verse is a tough one. It seems to say that baptism is part of salvation. But we know, from other scriptures that it isn't, lest there be a contradiction. What is going on here is simply that repentance and forgiveness of sins are connected. In the Greek, "repent" is in the plural and so is "your" of "your sins." They are meant to be understood as being related to each other. It is like saying, "All of you repent, each of you get baptized, and all of you will receive forgiveness." Repentance is a mark of salvation because it is granted by God (2 Tim. 2:25) and is given to believers only. In this context, only the regenerated, repentant person is to be baptized. Baptism is the manifestation of the repentance, that gift from God, that is the sign of the circumcised heart. That is why it says, repent and get baptized.