Be Fruitful & Multiply: Covenant Command & Context. Few commands have been quoted and misapplied as much as “Be fruitful and multiply.” It is found at the very beginning of the Bible and again after the flood. For some, it has become a timeless mandate for all believers in every age. Prosperity preachers even invoke it as a guarantee of personal blessing, expansion, or success. But is this command universal, or was it covenantal and contextual?