John Gills Exposition of the Bible Commentary - Genesis 46:12
And the sons of Judah, Er, and Onan, and Shelah, and Pharez , and Zarah ,.... Five of them: but Er and Onan died in the land of Canaan ; and so did not go with Jacob into Egypt; and which is observed that they might not be reckoned among them, though it was proper to take notice of them in the genealogy: and the sons of Pharez were Hezron and Hamul ; some think that these could not be born in Canaan, but in Egypt; and that they are mentioned among those that went down to Egypt,... read more
Matthew Henry's Complete Commentary - Genesis 46:5-27
Old Jacob is here flitting. Little did he think of ever leaving Canaan; he expected, no doubt, to die in his nest, and to leave his seed in actual possession of the promised land: but Providence orders it otherwise. Note, Those that think themselves well settled may yet be unsettled in a little time. Even old people, who think of no other removal than that to the grave (which Jacob had much upon his heart, Gen. 37:35; 42:38), sometimes live to see great changes in their family. It is good to... read more