What does 1 Samuel 22:5 mean?

Then the prophet Gad told David, 'You can’t stay in this stronghold. Go back to Judah.' So David left and went to the forest of Hereth. 1 Samuel 22:5 - Modern Text Bible

(God, through Gad, tells David not to hide out in a foreign place but to return to his own land, even though it’s risky.)