He took some of his brethren - There is something very strange in the original; literally translated it signifies "from the end or extremity (מקצה miktseh) of his brethren he took five men." This has been understood six different ways. 1. Joseph took five of his brethren that came first to hand - at random, without design or choice. 2. Joseph took five of the meanest-looking of his brethren to present before Pharaoh, fearing if he had taken the sightliest that Pharaoh would detain them for his service, whereby their religion and morals might be corrupted. 3. Joseph took five of the best made and finest-looking of his brethren, and presented them before Pharaoh, wishing to impress his mind with a favorable opinion of the family which he had just now brought into Egypt, and to do himself honor. 4. Joseph took five of the youngest of his brethren. 5. He took five of the eldest of his brethren. 6. He took five from the extremity or end of his brethren, i. e., some of the eldest and some of the youngest, viz., Reuben, Simeon, Levi, Issachar, and Benjamin - Rab. Solomon. It is certain that in Judges 18:2, the word may be understood as implying dignity, valor, excellence, and pre-eminence: And the children of Daniel sent of their family Five men מקצותם miktsotham, not from their coasts, but of the most eminent or excellent they had; and it is probable they might have had their eye on what Joseph did here when they made their choice, choosing the same number, five, and of their principal men, as did Joseph, because the mission was important, to go and search out the land. But the word may be understood simply as signifying some; out of the whole of his brethren he took only five men, etc.

And he took some of his brethren, [even] (a) five men, and presented them unto Pharaoh.
(a) That the king might be assured that they had come, and to see what type of people they were.

And he took some of his brethren,.... Along with him, when he left his father in Goshen; the word for "some" signifies the extremity of a thing: hence some have fancied that he took some of the meanest and most abject, so Jarchi, lest if they had appeared to Pharaoh strong and robust, he should have made soldiers of them; others on the contrary think he took those that excelled most in strength of body, and endowments of mind, to make the better figure; others, that he took of both sorts, or some at both ends, the first and last, elder and younger; but it may be, he made no choice at all, but took some that offered next:
even five men: whom the Targum of Jonathan names as follow, Zebulun, Daniel and Naphtali, Gad and Asher; but Jarchi will have them to be Reuben, Simeon and Levi, Issachar and Benjamin; but on these accounts no dependence is to be had:
and presented them, unto Pharaoh; introduced them into his presence, that he might converse with them, and ask them what questions he thought fit.

he took some of his brethren--probably the five eldest brothers: seniority being the least invidious principle of selection.