Yet have you discerned the doctrine of baptisms? or have you ever read regarding the plurality of baptism?
Hebrews 6:2 Of the doctrine of baptisms, and of laying on of hands, and of resurrection of the dead, and of eternal judgment.
GOD DOESN'T CHANGE (Malachi 3:6)!
There's only ONE baptism and was given as "a shadow on things to come" from the beginning (Exodus Chapters 13 & 14). Notwithstanding Christ's baptism of suffering (Luke 12:50), there were three baptisms in Scripture; one was "a shadow of things to come;" the second was John's water baptism (John 1:33) done UNDER THE LAW of "Repentance; Believing that Jesus was coming" (Acts 19:4) and the third IS the fulfillment of the "shadow of things to come" (Acts 1:5) mentioned in Ephesians 4:5.
The OT is "Jesus concealed" whereas the NT is "Jesus revealed!" I Corinthians 10:1-2 says "Moreover, brethren, I would no that ye should be IGNORANT, how that all our fathers were under the cloud, and all passed through the sea; And were all baptized unto Moses in the cloud and in the sea."
In Exodus 14:13-16 GOD commanded Moses to "...lift thou up thy rod, and stretch out thy hand over the sea, and divide it: and the children of Israel shall go on DRY GROUND through the midst of the sea" (v16) and NO ONE GOT WET which was "a shadow of things to come" for Holy Spirit baptism.
Exodus 13:21 says "And the LORD went before them by day in a pillar of a cloud, to LEAD them the way; and by night in a pillar of FIRE, to give them light; to go by day and night." This verse is a "revelation" from GOD! When we look back at the characteristics JESUS PROMISED of the Holy Spirit [baptism], we see in John 16:13 JESUS SAID that the Spirit of truth or the Holy Spirit would "GUIDE us into all truth" which is the same characteristic of the Cloud which "LEAD them the way" in Exodus 13:21.
In Matthew 3:11 John said that the Holy Spirit baptism would be "with FIRE" which is the same characteristic of "a pillar of FIRE" in Exodus 13:21 thus making the children of Israel's baptism unto Moses "a shadow of things to come" for Holy Spirit baptism.
The second baptism which John was BORN to perform (John 1:33) was prophesied by the prophets Isaiah (40:3) and Malachi (3:1) and was authorized ONLY to "prepare the way of the coming of the LORD" by having people "Repent; Believing that Jesus was coming" (Acts 19:4) which was only to be performed UNDER THE LAW and was to last ONLY until "JESUS CAME!"
In Jesus' ascension speech Jesus said in John 14:18 "I will not leave you Comfortless *I* will come to you" and AFTER the cross and before HIS ascension, JESUS "fulfilled" John' water baptism when HE SAID "John verily baptized with water; *BUT* [Which nullifies preceding words in a sentence] ye shall be baptized with the Holy Spirit..." (Acts 1:5) and water baptism SHOULD HAVE ended "...not many days hence."
Unfortunately, Peter "FORGOT" what JESUS SAID in Acts 1:5 which "fulfilled" water baptism as evidenced in Acts 11:15-16 and therefore we see all those ERRONEOUS water baptisms throughout the Book of Acts.
Consequently, the ORIGINAL baptism (Exodus 13/14) in which NO ONE GOT WET was "a shadow of things to come" and was "fulfilled" when JESUS RETURNED (John 14:18) in the glory of the Holy Spirit (Acts 1:2; 2:2) on the day of Pentecost that "fulfilled" John's water baptism performed UNDER THE LAW; for people proclaiming "Repentance; Believing that Jesus was coming" (Acts 19:4) because HE CAME and IT WAS OVER!
Blessings