What is a Galilean?
Jesus was a simple man, teacher and prophet.  He did not minister or live his life under the religious rules of the Jewish laws, or the doctrine dictated by man.  Our lives are to be exemplary of Jesus, in every way, we are to be Christ like, continuously seeking the perfection that Christ lived, knowing that we as sinners will never attain the perfection of Christ, but understanding that we, as servants, are to always strive for the perfection of Christ.

According to Easton's Bible Dictionary a Galilean is:  an inhabitant or native of Galilee.  This word was used as a name of contempt as applied to our Lord's disciples (Luke 22:59; Acts 2:7).  All the apostles, with the exception of Judas Iscariot (Acts 1:11), were Galileans.  Peter was detected by his Galilean accent (Matthew 26:69; Mark 14:70).

This was also one of the names of reproach given to the early Christians.  Julian the Apostate, as he is called, not only used the epithet himself when referring to Christ and his apostles, but he made it law that no one should ever call the Christians by any other name.

According to Holmans Bible Dictionary a Galilean is:  a person who lived in Galilee. Their speech distinguished them from the Jews in Jerusalem and Judah, particularly their difficulty in distinguishing the sound of the gutterals which are important in the Hebrew and Aramaic.  Peter's Galilean speech set him apart from the courtyard crowd during Jesus' trial (Mark 14:17; compare Acts 2:7).  Jesus was identified as being from Galilee (Matt. 26:69).  Pilate used this as an excuse to get Herod to hear Jesus' case (Luke 23:6-7) Galileans had a reputation for rebellion and disregard of the Jewish law (Acts 5:37) so they could be regarded as sinners (Luke 13:2).