Genesis 4:5-6

4:5 but with Cain and his offering he was not pleased. ¹  So Cain became very angry, ²  and his expression was downcast. ³ 

4:6 Then the Lord said to Cain, “Why are you angry, and why is your expression downcast?

Genesis 4:8

4:8 Cain said to his brother Abel, “Let’s go out to the field.” ⁴  While they were in the field, Cain attacked ⁵  his brother ⁶  Abel and killed him.

[4:5]  ¹ sn The Letter to the Hebrews explains the difference between the brothers as one of faith – Abel by faith offered a better sacrifice. Cain’s offering as well as his reaction to God’s displeasure did not reflect faith. See further B. K. Waltke, “Cain and His Offering,” WTJ 48 (1986): 363-72.

[4:5]  ² tn Heb “and it was hot to Cain.” This Hebrew idiom means that Cain “burned” with anger.

[4:5]  ³ tn Heb “And his face fell.” The idiom means that the inner anger is reflected in Cain’s facial expression. The fallen or downcast face expresses anger, dejection, or depression. Conversely, in Num 6 the high priestly blessing speaks of the Lord lifting up his face and giving peace.

[4:8]  ⁴ tc The MT has simply “and Cain said to Abel his brother,” omitting Cain’s words to Abel. It is possible that the elliptical text is original. Perhaps the author uses the technique of aposiopesis, “a sudden silence” to create tension. In the midst of the story the narrator suddenly rushes ahead to what happened in the field. It is more likely that the ancient versions (Samaritan Pentateuch, LXX, Vulgate, and Syriac), which include Cain’s words, “Let’s go out to the field,” preserve the original reading here. After writing אָחִיו (’akhiyv, “his brother”), a scribe’s eye may have jumped to the end of the form בַּשָּׂדֶה (basadeh, “to the field”) and accidentally omitted the quotation. This would be an error of virtual homoioteleuton. In older phases of the Hebrew script the sequence יו (yod-vav) on אָחִיו is graphically similar to the final ה (he) on בַּשָּׂדֶה.

[4:8]  ⁵ tn Heb “arose against” (in a hostile sense).

[4:8]  ⁶ sn The word “brother” appears six times in vv. 8-11, stressing the shocking nature of Cain’s fratricide (see 1 John 3:12).