Jeremiah 2:13 says "My people have committed two sins: They have forsaken me, the spring of living water, and have dug their own cisterns, broken cisterns that cannot hold water."
This verse is talking about when we leave God, when we ignore God, when we push God away in order to accomplish something on our own. And God calls this sin! This totally convicts me, I try so hard to be independent sometimes, even to the point of pushing God out of the picture. I work too hard to get something done that wasn't really meant to be done by me. God loves to step into our situations and our lives so that he can help us reach our goals. When we work on our own it's like building broken cisterns.

Dictionary.com describes a cistern as "a reservoir, tank, or container for storing or holding water or other liquid." In the bible days people would build cisterns to collect rain water to save in case of a drought or an event like that. But since the cistern is only holding the water, over time it would get stale and wouldn't taste all that great.
When we "build our broken cisterns" we may accomplish our goal but in the process we break ourselves. We wear ourselves thin, and when we finally go to put our reward, the fruits of our labor into our cisterns, it runs out because we're broken. And in doing this we sin.
Sin is sometimes described using the Greek term of missing the mark (don't ask me what it is in Greek, cuz I don't know), and I think that description works really well. In the context of this verse forsaking God is a sin because it misses the mark or the point of God asking us to stick with him. By sinning we miss the opportunity for God to fix us and use us! God doesn't want us to be broken cisterns, he wants us to be wells. Wells that have springs of water flowing beneath them so that the water is always fresh and clean and good. God wants to be that spring of living water that fills us and helps reach our goals.
When we sin it hurts us more than it hurts God I think. God gave us boundaries so that once we were right with him he could help us even more. When we choose to sin, by leaving him, by breaking his rules about how we treat others and ourselves, we damage ourselves. Working without rest is damaging to us because it wears us down and breaks us. Worshiping idols or loving something more than God places unrealistic expectations about what our idols can do for us, and how much they may love us in return. These things only leave us broken and hurting.
But when we turn to God he works to reverse the damage that sin does to our hearts. When we give God our trust and our permission to change us, change our work, our situations, and our lives he can heal us form the sin that hurt us. God is so good at healing us and giving us what we need.
John 4:13-14 Jesus answered, "Everyone who drinks this water will be thirsty again, but whoever drinks the water I give him will never thirst. Indeed, the water I give him will become in him a spring of water welling up to eternal life."
Sin isn't the main focus here. It's the power that God's grace has in restoring us from the hurt that sin causes in our lives. God loves you more than you will ever know and it's his dream to lead you to the place where you can be whole in him. And not just whole as in not being broken or hurt anymore! God has plans to use you! Plans to use you to help shake and move the foundations of the world out of its broken, hurting state, and into the total freedom and love that God has for each and every one of us! God's grace will change your life and with it you will never be the same.

