Jonah 1:2

2Arise, go to aNineveh, that bgreat city, and call out against it, cfor their evil
The same Hebrew word can mean  evil or disaster, depending on the context; so throughout Jonah
has come up before me.”

Jonah 3:2-3

2Arise, go to eNineveh, that great city, and call out against it the message that I tell you.” 3So Jonah arose and went to Nineveh, according to the word of the Lord. Now fNineveh was an exceedingly great city,
Hebrew  a great city to God
three daysjourney in breadth.
Or a visit was a three days’ journey
Copyright information for ESV