1 And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from Yahweh.
Now, here was a conception in sin, the originator of which was the serpent. When therefore, in the "set time" afterwards, "Eve bare Cain," though procreated by Adam, he was of the serpent, seeing that he suggested the transgression which ended in the conception of Cain. In this way, sin in the flesh being put for the serpent, Cain was of that wicked one, the pre-eminent sinner, and the first-born of the serpent's seed.
Elpis Israel 1.3.
14 Behold, thou hast driven me out this day from the face of the earth; and from thy face shall I be hid; and I shall be a fugitive and a vagabond in the earth; and it shall come to pass, that every one that findeth me shall slay me.
Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap. (Gal 6:7).
The plight of the rejected at the judgement seat will be 'greater than [they] can bear.
...To be exiled with shame into the land of the enemy, and there to be subject to poverty, pain, vagabondism, hunger, pestilence, and death, without hope of deliverance, will doubtless extort from each one the lamentation imputed to Cain,
Herald Feb 1854.
16 And Cain went out from the presence of Yahweh, and dwelt in the land of Nod, on the east of Eden.
Notwithstanding his crime Cain was permitted to live. But the seed of evil-doers never gets renown. Sooner or later their deeds of villany consign their names to reprobation. God hid His face from Cain, and exiled him from the settlements in Eden. He wandered still further to the East, "and dwelt in the land of Nod." There he founded a city, and called it Enoch. His offspring multiplied, and found out many inventions.
They became wandering tribes, dwelling in tents and tending cattle; others of them, musicians, and artificers in brass and iron. Their women were beautiful, and, as the descendants of Cain, untrained in the nurture and admonition of the Lord, were vain in their imaginations, and demoralising in their associations.
Elpis Israel 1.4.
26 And to Seth, to him also there was born a son; and he called his name Enos: then began men to call upon the name of Yahweh.
Seth's descendants in the direct line ended in Noah and Japheth at the time of the flood. His posterity, in this and the collateral branches, multiplied considerably, but for a time constituted a separate community from the progeny of Cain. During the lifetime of Enos, son of Seth, "they began to call themselves by the name of the Lord," or "sons of God" (Gen. 4:26; 6:2): while the faithless and corrupt worshippers of the land of Nod, were simply styled "men."
Elpis Israel 1.4.