John Gill

Come, and let us sell him to the Ishmaelites,.... For a slave, and that will defeat his dream; and as these were going down to Egypt, where they would sell him, he would be far enough from them, and there would be no probability of his ever being lord over them: and let not our hand be upon him; to take away his life, either by stabbing or starving him: for he is our brother, and our flesh; they had all one father, though different mothers, and therefore, as the relation was so near, some sympathy and compassion should be shown; some degree of tenderness at least, and not savageness and cruelty: and his brethren were content; they agreed to the motion, inasmuch as they supposed it would answer their end as well, which was to prevent his dominion over them.