Matthew 5:27-30 NLT
 “You have heard the commandment that says, ‘You must not commit adultery.’
 But I say, anyone who even looks at a woman with lust has already committed adultery with her in his heart.
 So if your eye—even your good eye— causes you to lust, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell.
 And if your hand—even your stronger hand— causes you to sin, cut it off and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell.
Reflection . . .
First, verses 27-28 are talking about the fact that sin is first committed in our hearts and minds. Of course acting out those desires is sin too, but it all starts in our hearts and minds. That is why we are so often admonished to guard our hearts and minds and be transformed by the renewing of our minds (Romans 12:1-2).
Second, verses 29-30 are talking about the fact that if there is something that is causing us to sin, something that keeps tripping us up, keeps triggering us toward sinful behaviour, we must do whatever is necessary to get it out of our lives! Many would say that cutting your hand off or gouging your eye out is way too dramatic, but the point being made here is that sin is a serious thing and we must do whatever it takes to make changes to our behaviour and thinking!
Who can change and transform us? Only God.
Who will help us through it? Only God.
Who can help us do what is necessary to live for Jesus? Only God.