Reverend Dimmesdale saying "Come, my little Pearl" is significant because it is his public confession that Pearl is his daughter.
After he finishes his sermon,<u> Reverend Dimmesdale shows people that he is not 'the holiest man in New England' as everyone thinks by revealing that Pearl, Hester's daughter, is his illegitimate child</u>. When he tells his secret, Hester and Pearl stand by his side and both of them are witness of the A that he has carved into his skin, which symbolizes that the Reverend is a sinner. After he confesses his sin and asks for forgiveness, Reverend Dimmesdale dies on the scaffold.
