No man is an island

You don’t sin in a vacuum. What you do (or don’t do) affects those around you. Achan thought, “surely a Babylonian robe, some silver and a little gold will not be missed among all the plunder of Jericho.” But his sin weakened all of Israel and brought disaster on his people (Josh 7:1, 1Ch 2:7). Your behavior causes collateral damage. Who knows how many people look to you for example and inspiration? If you fall you cause them to stumble (Mar 9:42, Rom 14:21). “Fight the good fight, finish the course, keep the faith” (2Ti 4:7). Consider him who for the joy set before him endured the cross, despising the shame, enduring the hostility of sinners so that you will not grow weary and lose heart (Heb 12:2-3).