Zechariah 6:6-8

6That in which are the black horses goeth forth into the north country; and the white go forth after them; and the grisled go forth towards the south country;

7and the strong go forth, and seek to go that they may walk to and fro through the earth. And he said, Go, walk to and fro through the earth. And they walked to and fro through the earth.

8And he cried unto me, and spoke unto me, saying, See, these that go forth towards the north country have quieted my spirit in the north country.