Jeremiah 29:4-7

4 Thus says Yahweh of Hosts, the God of Israel, to all the captivity, whom I have caused to be carried away captive from Jerusalem to Babylon:  5 Build you houses, and dwell in them; and plant gardens, and eat the fruit of them.  6 Take wives, and father sons and daughters; and take wives for your sons, and give your daughters to husbands, that they may bear sons and daughters; and multiply you there, and don't be diminished.  7 Seek the peace of the city where I have caused you to be carried away captive, and pray to Yahweh for it; for in the peace of it shall you have peace.