A.T. Robertson Commentary Mark 1:28

"And the report of him went out straightway everywhere into all the region of Galilee round about." — Mark 1:28 (ASV)

The report of him (η ακοη αυτου). Vulgate, rumor. See Mt 14:1; 24:6. They had no telephones, telegraphs, newspapers or radio, but news has a marvellous way of spreading by word of mouth. The fame of this new teacher went out "everywhere" (πανταχου) throughout all Galilee.