Genesis 4:14

Every one that findeth me, shall kill me. His guilty conscience made him fear his own brothers, and nephews; of whom, by this time, there might be a good number upon the earth: which had now endured near 130 years; as may be gathered from Genesis v. 3, compared with chap. iv. 25, though in the compendious account given in the Scripture, only Cain and Abel are mentioned. (Challoner) --- Cain is little concerned about any thing but the loss of life. (Menochius)