Jeremiah 29:1, 4-7

29These are the words of the letter that the prophet Jeremiah sent from Jerusalem to the remaining elders among the exiles, and to the priests, the prophets, and all the people, whom Nebuchadnezzar had taken into exile from Jerusalem to Babylon. 4Thus says the Lord of hosts, the God of Israel, to all the exiles whom I have sent into exile from Jerusalem to Babylon: 5Build houses and live in them; plant gardens and eat what they produce. 6Take wives and have sons and daughters; take wives for your sons, and give your daughters in marriage, that they may bear sons and daughters; multiply there, and do not decrease. 7But seek the welfare of the city where I have sent you into exile, and pray to the Lord on its behalf, for in its welfare you will find your welfare.

From the oremus Bible Browser https://bible.oremus.org v2.9.2 30 June 2021.