As we walk through the Christian life, St. Paul commands us to have genuine love for one another. This admonition is foundational to all that he then goes on to say about Christian life in this world with other believers and with non-believers. Ultimately, through genuine love, we will discover that we are not overcome by evil, but can overcome evil through that very genuine love.
Image: Persecution of Christians with scenes of martyrdom behind, engraving by J. Wierix after M. de Vos. License: CC BY 4.0, from Wellcome Collection. Image located: https://commons.wikimedia.org/wiki/File:Persecution_of_Christians_with_scenes_of_martyrdom_behind._E_Wellcome_V0033268.jpg