Psalm 41:9 Even my close friend, someone I trusted, one who shared my bread, has turned against me.
David wrote this many years ago; but we could have, Christ could have, many people could have…
When someone turns their heel against you, it is not just their heel but their whole body; and not just their body, but all who are accomplices in the act!
When we sin, we are bringing sin into our whole life and into the people around us too; God wants us to recognise just how damaging sin is so we work against it and keep up the daily exercise to keep us away from it!