Have you ever struggled with something that you knew is wrong but you continued to do it anyway? I believe that this happens to all of us. There was a time in my life when I used to smoke. I knew it was bad for my health and harmful to my body but I did it anyway. I tried over and over to quit but every time I stopped it was only a short while until I picked the habit back up again only to find myself even more addicted than the last time. It was not until I fully surrendered this habit and asked God to give me the strength and to help me with this that I was able to quit completely. In my own strength I was not able to overcome anything. Live if full of battles and many times we try to fight them alone. God is waiting for us to call upon Him for help. Next time you find yourself in a battle, remember who is walking beside you waiting for you to call His name.
God makes it clear why we sin - it's a matter of the heart. Our heart is inclined toward sin from the time we are born. It is easy to fall into the routine of forgetting and forsaking God. But we can still choose weather or not to continue in sin. We can yield to a specific temptation, or we can ask God to help us resist temptation when it comes.
Jeremiah 17:9, 10 The human heart is the most deceitful of all things, and desperately wicked. Who really knows how bad it is? But, I the Lord, search all hearts and examine secret motives. I give all people their due rewards, according to what their actions deserve.