If thou doe well, shalt thou not be accepted? and if thou doest not well, sinne lieth at the doore: And vnto thee shall be his desire, and thou shalt rule ouer him. Genesis 4:7 (KJV)
After the fall of Adam and Eve, they had two sons named Cain and Abel. Cain was a tiller of the ground, and Abel was a keeper of sheep. Both brothers brought offerings to God, but God respected Abel’s offering of the firstborn of his flock, while He did not respect Cain’s offering of the fruit of the ground. This disparity caused Cain to become angry and his countenance fell.
The verse begins with a conditional statement, “If thou doest well, shalt thou not be accepted?” God is addressing Cain and essentially saying that if he does what is right, his offering will be accepted. The implication is that Cain’s offering was not acceptable because of the condition of his heart or the manner in which he presented it.
The next clause, “and if thou doest not well, sin lieth at the door,” serves as a warning. God cautions Cain that if he continues down the wrong path and harbors negative emotions such as anger and jealousy, sin is waiting to overtake him. The passage emphasizes the importance of making righteous choices and resisting the temptation to indulge in sinful behaviour.
Finally, the verse concludes with, “And unto thee shall be his desire, and thou shalt rule over him.” One common interpretation understands “his desire” as sin’s desire to control or dominate Cain, and God is emphasizing that Cain has the responsibility to rule over sin, not allowing it to dictate his actions or emotions. Another interpretation suggests that “his desire” may refer to Abel’s desire for fellowship, and Cain is called to rule over his jealous feelings and maintain a healthy relationship.

