A little leaven leavens the whole lump. (Galatians 5:9)
This adage is easily understood. Just as it takes only a small amount of leaven to affect an entire loaf of bread, a little sin has a saturating influence on one’s life. The encroachment of sin may begin almost imperceptibly, yet its mark is always left. Do not be deceived into believing that “a little sin will not hurt”; Sin always hurts. Even a little sin endangers your soul and opens the door to still more sin. Left unchecked, sin’s influence permeates your heart and your life – hardening you and destroying you as it goes. Be on guard and do not be deceived by sin’s deadly influence. Give sin no safe haven in your heart, for if you do, its destructive influence will be swift and complete. Choose instead to be influenced by the truth of God (Phil. 4:8).