2 Corinthians 6:14

Do not be unequally bound together with unbelievers (do not make mismatched alliances with them, inconsistent with your faith). For what partnership can righteousness have with lawlessness? Or what fellowship can light have with darkness. 

Our relationships matter because they either work to keep us on track with God or steer us off course. We don’t want to be influenced into sin because of another person. Our beliefs will seem foolish to someone in sin. Our boundaries, if not protected, will be crossed by someone who doesn’t respect those beliefs. Find relationships that build up faith!