I had an earlier post on Repentance and Salvation. I stand by my points there, but what's more important is what Repentance means.
The Greek word translated Repent means a change of mind. A Change how how you think. Mark 1:15 says "repent ye, and believe the gospel". It's all about Belief.
The people who overemphasis Repentance, who puts memes on Facebook saying "If your Gospel doesn't include Repentance your teaching a False Gospel", think Repent means to Turn from Sin. It doesn't mean that. Judas Repented of what he had done, and then went and immediately committed Suicide.
One more thing. John's Baptism is defined as the Baptism of Repentance. Matthew 3:11, Mark 1:4, Luke 3:3, Acts 13:24 and19:4. Some view that as part of argument Johns' Baptism was a different Baptism then what the Apostles Baptized. I don't have an opinion on that yet, but either way the point here is. Jesus was Baptized by John? Why? He was Without Sin?
The reason is Jesus did everything necessary for Salvation for us. Including Repentance.