But Jonah rose up to flee unto Tarshish from the presence of the LORD, and went down to Joppa; and he found a ship going to Tarshish: so he paid its fare, and went down into it, to go with them unto Tarshish from the presence of the LORD.
All Commentaries on Jonah 1:3 Go To Jonah 1
Haimo of Auxerre
AD 865
In Hebrew, however, they speak generally of the sea as "Tharsis." Therefore, the prophet did not wish to flee to any particular place, but he embarked upon a ship which could take him anywhere, so long as he could hurry, not caring where chance led him.