根据NIV Study Bible 注解:除了上面一种说法以外2楼的说法也提到了: "Sons of God"possibly refers to godly men,"daughters of men"to sinful women(significantly,they are not called "daughters of God"),probabiy from the wicked line of Cain. If so, the context suggests that vv.1-2 describe the intermarriage of the Sethites with the Cainites,indicating a breakdown in the separation of the two groups. 还有:Another plausible suggestion is that the "sons of God" refers to royal figures (kings were closely associated with gods in the ancient Near East) who proudly perpetuated and aggravated the corrupt lifestyle of Lamech son of Cain (virtually a royal figure) and established for themselves royal harems. 天主教方面采用的是天使的说法。隐含表示这里是指堕落的天使,根据是马太福音25:41,启示录12:4,12:7,但是这种解释略现牵强。