Baptism

Means (1) to be washed (2) to be buried (to be immersed) and in spiritual meaning, (3) to pass on sin by laying on of hands, as ministered in the Old Testament days.
In the New Testament, the baptism of Jesus by John the Baptist was to wash away all the sins of the world. 'The baptism of Jesus' has the meaning of taking away the sins of all mankind, to wash away the sins of the world.
Jesus was baptized by John the Baptist, the representative of all human beings and the High Priest of the lineage of Aaron, and took all the sins of the world upon Himself. This was the purpose of His baptism.
The spiritual meaning of the word 'baptism' is 'to pass on, to be buried.' So, "the baptism of Jesus" means that all sins were passed onto Jesus and that He was judged instead of us. In order to save mankind, Jesus had to take away our sins with His baptism and die for them.
Thus, His death is also the death of you and me, all the sinners of the world, and His resurrection is the resurrection of all people. His sacrifice is the salvation of sinners, and His baptism is the very witness to washing away all the sins of humankind.

The Bible tells us, "There is also an antitype which now saves us, namely baptism" (1 Peter 3:21). The baptism of Jesus is the righteous way of saving all humanity by washing away our sins.

What The Bible has to say about Bapism

Mathew 3: 13-16

Then Jesus came from Galilee to the Jordan to John, to be baptized by him. John would have prevented him, saying, "I need to be baptized by you, and do you come to me?" But Jesus answered him, "Let it be so now; for thus it is fitting for us to fulfill all righteousness." Then he consented. And when Jesus was baptized, he went up immediately from the water, and behold, the heavens were opened and he saw the Spirit of God descending like a dove, and alighting on him; and lo, a voice from heaven, saying, "This is my beloved Son, with whom I am well pleased."

 Ephesians 4: 4-5

There is one body, and one Spirit, even as you are called in one hope of your calling; One Lord, one faith, one baptism, One God and Father of all, who is above all, and through all, and in you all.

Romans 6:3-5

Do you not know that all of us who have been baptized into Christ Jesus were baptized into his death?

We were buried therefore with him by baptism into death, so that as Christ was raised from the dead by the glory of the Father, we too might walk in newness of life. For if we have been united with him in a death like his, we shall certainly be united with him in a resurrection like his.

1Peter 3:21

This is a symbol of baptism, which now saves you also - not the removal of dirt from the body, but the answer of a good conscience toward God, it saves you by the resurrection of Jesus Christ.

Colossians 2:12

and you were buried with him in baptism, in which you were also raised with him through faith in the working of God, who raised him from the dead.

John 3: 1-5

Now there was a man of the Pharisees, named Nicodemus, a ruler of the Jews. This man came to Jesus by night and said to him, "Rabbi, we know that you are a teacher come from God; for no one can do these signs that you do, unless God is with him." Jesus answered him, "I tell you the truth, unless one is born anew, he cannot see the kingdom of God." Nicodemus said to him, "How can a man be born when he is old? Can he enter a second time into his mother's womb and be born?" Jesus answered, "I tell you the truth, unless one is born of water and the Spirit, he cannot enter the kingdom of God.

Acts 8:26-40

And the angel of the Lord spoke to Philip, saying, Get up, and go toward the south unto the way that goes down from Jerusalem to Gaza, which is desert. And he got up and went: and, behold, a man of Ethiopia, an eunuch of great authority under Candace queen of the Ethiopians, who had the charge of all her treasure, and had come to Jerusalem to worship, Was returning, and sitting in his chariot read Isaiah the prophet. Then the Spirit said to Philip, Go near, and stay close to this chariot. And Philip ran up to him, and heard him reading the prophet Isaiah, and said, Do you understand what you are reading? And he said, How can I, except someone should guide me? And he invited Philip to come up and sit with him. The place of the scripture which he read was this, �He was led as a sheep to the slaughter; and like a lamb dumb before his shearer, so opened he not his mouth: In his humiliation his judgment was taken away: and who shall declare his generation? for his life is taken from the earth.� And the eunuch answered Philip, and said, I ask you, of whom is the prophet speaking? of himself, or of some other man? Then Philip opened his mouth, and began at the same scripture, and preached to him Jesus. And as they went on their way, they came to some water: and the eunuch said, See, here is water; what keeps me from being baptized? And Philip said, If you believe with all your heart, you may. And he answered and said, I believe that Jesus Christ is the Son of God. And he commanded the chariot to stop: and they both went down into the water, both Philip and the eunuch; and Philip baptized him. And when they came up out of the water, the Spirit of the Lord caught away Philip, and the eunuch saw him no more: but he went on his way rejoicing. But Philip was found at Azotus: and passing through he preached in all the cities, till he came to Caesarea.

Gallations 3:26

For you are all sons of God through faith in Christ Jesus, for as many of you as were baptized into Christ have clothed yourselves with Christ.

Mark 16:15

And he said unto them, Go into all the world, and preach the gospel to every creature. He that believes and is baptized shall be saved, and he that disbelieves shall be condemned.

Titus 3:5

Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewal of the Holy Spirit

Mathew 28:18

Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you; and lo, I am with you always, to the close of the age.

Acts 2:38

And Peter said to them, "Repent, and be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins; and you shall receive the gift of the Holy Spirit. For the promise is to you and to your children and to all that are far off, every one whom the Lord our God calls to him." And he testified with many other words and exhorted them, saying, "Save yourselves from this crooked generation." So those who received his word were baptized, and there were added that day about three thousand souls

Acts 22

And now why do you wait? Rise and be baptized, and wash away your sins, calling on his name.

Who was John The Baptist?

God gave Israel His Law through Moses as well as the sacrificial system so that they could attain atonement for their sins and iniquities. He ordained Aaron, the elder brother of Moses, as the High Priest and had him offer the sacrifice of atonement on the tenth day of the seventh month, the Day of Atonement, so that the yearly sins of Israel could be washed away (Leviticus 16).

God specified that the sacrifice of the Day of Atonement could only be offered by Aaron and the succeeding High Priests among his descendants. God opened the way for Israelites to atone for all their sins through the laying on of Aaron's hands on the head of the scapegoat. This is the law of atonement God established for them.

By this shadow, He let it be known clearly that Jesus was the Savior of mankind. In the age of the New Testament, God sent John the Baptist, a descendant of Aaron (1 Chronicles 24:10, Luke 1:5) and the last High Priest of the Old Testament (Matthew 11:11-13). John the Baptist, as the God-sent prophet, representative and High Priest of humankind, baptized Jesus in order to pass all the sins of humankind onto Him, the Son of God, who came to save sinners.

All people are blessed indeed to be able to pass their sins onto Jesus through John the Baptist. The role of John was to be the High Priest who represented humankind and the servant of God who passed all our sins onto Jesus.

John the Baptist was the representative and the High Priest of humankind sent by God, and the messenger who was sent 6 months prior to Jesus. On the other hand, Jesus was the Lamb of God who took away all the sins of the world while John the Baptist was the last High Priest who passed the sins of the world onto Jesus through baptism. John the Baptist was a servant of God

John The Baptist bapized Jesus in The Jordan River

The Jordan River rapidly flows into the Dead Sea. The surface of the Dead Sea is about 400 meters lower than sea level. Therefore, the water in the Dead Sea cannot flow anywhere; it is locked in the Dead Sea.

The salinity of the Dead Sea is 10 times higher than the other ordinary seas, and no living thing exists there. Thus, it is called the Dead Sea. Jesus was baptized by John the Baptist in the river of death (the Jordan River). This represents that all human beings, except those without sin in their hearts, face eternal damnation for their sins in the end.

Therefore, the Jordan River is the river of washing away sins, the river where sinners die. In short, it is the river of redemption where all the sins of the world were washed away through His baptism, the passing of sins on to Jesus.