Matthew 4:24
So his fame spread throughout all Syria, and they brought him all the sick, those afflicted with various diseases and pains, those oppressed by demons, those having seizures, and paralytics, and he healed them.
his fame spread
The extent of His influence in the land is the chief concern of this passage.
The area we typically see depicted in a map of "the holy land" is the rough equivalent of what is being described in this passage. It includes all Judea, but also Edom in the south (Idumaea), the coastlands west and north, and even the lands east of the Jordan and the Dead Sea.
His fame spreads very quickly for the time. The number of eye witnesses to His teaching and miraculous power is steadily increasing, as well, so that He has someone who can say they've seen what He can do practically everywhere. Remember that miracles are how God bears witness.