Verse 17 Are you washed in the right thing

This is #12 in the google list and #59 in the biblegateway.com list.

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 will receive the gift of the Holy Spirit.

SIS

Mark 16:16
Whoever believes and is baptized will be saved, but whoever does not believe will be condemned.

Acts 22:16
And now why do you wait? Rise and be baptized and wash away your sins, calling on his name. ’

PIC

So is baptism needed for personal salvation. Well this verse follows the question
Acts 2:37
Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?

And what had they heard, amoungst others, that as a nation or people group they had crucified the Christ. There were no Gentiles present, all were Jews from various countries to practice the Passover. So this baptism request is a response to them.
They had the personal response needed already given to them in verse 21, which mirrors the reply given to the Phillippian jailer in Acts 16.
Acts 2:21
And it shall come to pass, that whosoever shall call on the name of the Lord shall be saved.

We are washed in the blood of Jesus, not just water, as revelation 1.5 says, and is backed up by 5.9 and Romans 3.25.
Revelation 1:5
And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood,

We are saved by the cross alone through faith alone by grace alone. The thief on the cross illustrates that, for he was saved without an opportunity for baptism.

HIJ

But here is the promise that although we have rejected Christ, His Cross brings us near. Though we have blasphemed His name, His name opens the door to salvation. And He offers us rebirth, of life and spirit, even giving us The Holy Spirit.
As a loving response we can be baptised, to say or witness to what He has already done. And Paul puts it beautifully in his letter to the Galatians.
Galatians 2:20
I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.