'Back' in the Bible

They will wander from sea to sea, and from the north even to the east; they will run back and forth to seek the word of Yahweh, and will not find it.

I will bring my people Israel back from captivity, and they will rebuild the ruined cities, and inhabit them; and they will plant vineyards, and drink wine from them. They shall also make gardens, and eat the fruit of them.