Pet. 3:21, "and this water symbolizes baptism that now saves you also -- not the removal of dirt from the body but the pledge of a good conscience toward God. It saves you by the resurrection of Jesus Christ."
This is the only verse that says that baptism saves. But, the NIV translation of the verse is unfortunate. A better translation is found in the NASB which says, "and corresponding to that, baptism now saves you." The key word in this section is the Greek antitupon. It means "copy," "type," corresponding to," "a thing resembling another," "its counterpart," etc. Baptism is a representation, a copy, a type of something else. The question is "Of what is it a type?", or "Baptism corresponds to what?". The answer is found in the previous verse, verse 20: "who once were disobedient, when the patience of God kept waiting in the days of Noah, during the construction of the ark, in which a few, that is, eight persons, were brought safely through the water. 21And corresponding to that, baptism now saves you" (NASB).
What does baptism correspond to? Is it the flood? Or, is it the ark? What was it that saved Noah and his family? Was it the water or the ark? Obviously, it was the Ark. Noah built and entered the ark by faith and was saved (Heb. 11:7). The flood waters destroyed the ungodly. Peter, when referring to the flood waters, refers to them as the means of destruction of the ungodly (2 Pet. 2:5; 3:6). It was the Ark that saved. Noah entered the ark by faith. Baptism here, in my opinion, refers to the Ark, not the waters. That is why the rest of the verse says, "not the removal of dirt from the body but the pledge of a good conscience toward God" which is consistent with what Paul said in Col. 2:11-12 where He equates baptism with being circumcised of heart.
1 Pet. 3:21 -- Having affirmed that salvation in the days of Noah was through the water of the flood, Peter now draws a comparison with the water of baptism: "The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ." The ASV says that this is "a true likeness." Salvation offered through water in the days of Noah is exactly parallel to salvation offered through water baptism. Baptism is the antitype of the waters of the great flood.
The water itself had no saving power in the flood, nor does it have any saving power today. The saving power for Noah was his obedience to God's Word. Eight souls obeyed God and prepared an ark, and God saved them through water. Today people obey the gospel plan of salvation culminating in water baptism, and God likewise saves them through water. The power of salvation is in God, rather than in the water.
The likenesses are seen in the similitude of the salvation through water in the days of Noah and water baptism in the Christian age. The waters of the flood bore the ark up and thus separated those in the ark from those outside the ark. Those in the ark were saved, and those outside perished. The flood also purged Noah's world of the sin that had been so prevalent and so deadly.
Water baptism in like fashion provides salvation through water to those inside the church, which is the spiritual ark of God today. Baptism separates the godly from the ungodly, because those who are Scripturally baptized kill off the old man of sin and bury it in the waters of baptism, to be resurrected a new man who no longer serves sin (Rom. 6:3-4). Thus, the old man is purged from sin never to serve sin again.
In order to insure that there are no misunderstandings concerning Peter's meaning of water baptism, he makes it clear in this verse that he is not talking about washing dirt from the physical body.
The baptism Peter is discussing in this verse is an interrogation of a good conscience. The word interrogate means "to inquire seriously or question." Baptism is not some outward, meaningless act. Baptism involves honestly and sincerely coming to God on His terms, seeking to be reconciled to God. A good conscience helps in the process of bringing one to Christ in gospel obedience. When one hears the Word of God, a person who has a good (properly functioning) conscience will be convicted of sin. The conscience convicts of sin, and thus leads a person to repent of sin and to be baptized for the remission of sin, first confessing Jesus Christ as the Son of God.
Our salvation upon being baptized is "through the resurrection of Jesus Christ." Without the resurrection of Christ the gospel plan of salvation and everything connected to it would be meaningless. There would be no means by which we could be saved! Baptism saves now only because Christ not only died on the cross for our sins, but also because He was resurrected on the third day.
Acts 22:16, "And now what are you waiting for? Get up, be baptized and wash your sins away, calling on his name."
Is the washing away of sins done by baptism, the representation of the circumcised heart (Col. 2:11-12) which means you are already saved, or is it by the blood of Christ (Heb. 9:14; Rom. 5:9; Eph. 1:7)? Obviously it is the blood of Jesus and the washing here refers to the calling on Jesus' name.
No its not done by the water itself but the washing of the sins is done at the point of baptism by your faith in the working of God Col 2:12. By the way calling on the name of the Lord and getting yourself immersed according to the greek happen at the same time. This verse proves that water baptism is essential to salvation. Paul was already beliver and had repented and even confess Jesus as lord and was praying for 3 days yet he was still in his sins. Ananias told him what he needed to know in order to become saved and that was getting himself baptized. Also note this on the idea of calling on the lord from Peters sermon on the day of Pentacost.
Acts 2:21 And it shall come to pass That whoever calls on the name of the LORD Shall be saved.'
We know that this is not merely vocal call Mat 7:21. We find that in Acts 37 after hearing these words and others the people wanted to know what they should do. In verse 38 we see Peter tells them to repent and be baptized for the remission of sin. Again we can see clearly that calling on the name of the Lord involves these elements.
Rom. 6:4, "We were therefore buried with him through baptism into death in order that, just as Christ was raised from the dead through the glory of the Father, we too may live a new life."
Because the believer is so closely united to Christ it is said that the symbol of baptism is our death, burial, and resurrection. Obviously we did not die--unless, of course, it is a figurative usage.
Titus 3:5, "he saved us, not because of righteous things we had done, but because of his mercy. He saved us through the washing of rebirth and renewal by the Holy Spirit."
The washing of rebirth can only be that washing of the blood of Christ that cleanses us. It is not the symbol that saves, but the reality. The reality is the blood of Christ.
Gal. 3:27, "for all of you who were baptized into Christ have clothed yourselves with Christ."
This is speaking of the believer's union with Christ. It is an identification with, a joining to, a proclamation of loyalty to, etc. In 1 Cor. 10:2 the Israelites were baptized into Moses. That means they were closely identified with him and his purpose. The same thing is meant here.
Rom 6 depicts vividly what happens as we obey the will of God and are baptized into Christ death. Read the chapter and you will see clearly that we do not have forgiveness of sin or the promise of being raised with Christ until we are baptized.
I have already dealt with Titus 3:5.
Between Gal 3:27 and Rom 6:3 are some of the only verses that tells us how we get into Christ where are the spritual blessings are and salvation is to be found Eph 1:3, 7 2Tim 2:1, 10. If you want to be found in Christ where all these are found then you must be baptized into Christ.
Hebrews 5:8-9 8 though He was a Son,
yet He learned obedience by the things which He suffered. 9 And having been perfected,
He became the author of eternal salvation to all who obey Him,
Matthew 7:21 21 " Not everyone who says to Me, 'Lord, Lord,' shall enter the kingdom of heaven, but
he who does the will of My Father in heaven.