Genesis 4:6

6 And Jehovah said to Cain, Why art thou angry, and why is thy countenance fallen?

Genesis 4:6 Meaning and Commentary

Genesis 4:6

And the Lord said unto Cain, why art thou wroth? and why is
thy countenance fallen?
&c.] Which was said not as being ignorant of his wrath and resentment, but to bring him to a conviction of his sin or sins, which were the cause of God's rejecting his sacrifice, and to repentance and amendment; and to show him that he had no cause to be displeased, either with him or his brother, for the different treatment of him and his offering; since the fault lay in himself, and he had none to blame but his own conduct, which for the future he should take care to regulate according to the divine will, and things would take a different turn.

Genesis 4:6 In-Context

4 And Abel, he also brought of the firstlings of his flock, and of their fat. And Jehovah looked upon Abel, and on his offering;
5 and upon Cain, and on his offering, he did not look. And Cain was very angry, and his countenance fell.
6 And Jehovah said to Cain, Why art thou angry, and why is thy countenance fallen?
7 If thou doest well, will not [thy countenance] look up [with confidence]? and if thou doest not well, sin lieth at the door; and unto thee [shall be] his desire, and thou shalt rule over him.
8 And Cain spoke to Abel his brother, and it came to pass when they were in the field, that Cain rose up against Abel his brother, and slew him.
The Darby Translation is in the public domain.