Loving fellow believers is evidence of being InChrist 1Jn 4:7. We prove that love by fellowshipping with them, edifying them and praying for them Jam 5:16 Rom 15:2.<p>  We love the sinner for their potential salvation sake 2Pe 3:9. We prove that love by sharing the Gospel with them Mar 16:15 .<p>We love the reprobate by warning them of the wrath to come for their rebellion Luk 13:3 Luk 3:7.