The book of Genesis in the Bible gives a concise three-point teaching about sin. This was written about Cain, but equally applies to us.
1) Sin is crouching at our door: The word “crouch” reminds me of a cat getting ready to pounce on its prey. The situation is ominous.
2) Sin desires to have us: Once the cat leaps for its quarry, there’s little doubt over the outcome. Sin is crouching for us; it is getting ready to leap and destroy us. There’s little we can do — or is there?
3) We must master it: Sin is much easier to master beforehand rather than in the midst of it. When it is crouching, the potential for sin is there, but it’s not actual sin; it’s temptation. We know what to do with temptation and the devil who promotes it; we are to resist.
[Genesis 4:7 and James 4:7]
A lifelong student of the Bible, Peter DeHaan, PhD, wrote the 1,000-page website ABibleADay.com to encourage people to explore the Bible. His main blog and many books urge Christians to push past the status quo and reconsider how they practice their faith in every area of their lives.