Adam Clarke's Commentary on the Bible - Genesis 4:2
And she again bare his brother Abel - Literally, She added to bear ( ללדת ותסף vattoseph laledeth ) his brother. From the very face of this account it appears evident that Cain and Abel were twins. In most cases where a subject of this kind is introduced in the Holy Scriptures, and the successive births of children of the same parents are noted, the acts of conceiving and bringing forth are mentioned in reference to each child; here it is not said that she conceived and brought forth... read more
Adam Clarke's Commentary on the Bible - Genesis 4:1
I have gotten a man from the Lord - Cain, קין , signifies acquisition; hence Eve says קנתי kanithi , I have gotten or acquired a man, יהוה את eth Yehovah , the Lord. It is extremely difficult to ascertain the sense in which Eve used these words, which have been as variously translated as understood. Most expositors think that Eve imagined Cain to be the promised seed that should bruise the head of the serpent. This exposition really seems too refined for that period. It is very... read more