Genesis 45:12

“And, behold, your eyes see, and the eyes of my brother Benjamin, etc.] They were eyewitnesses of his being alive, having themselves seen him, and even Benjamin, who could not be suspected by his father of a fraud in imposing on him; and some of them could doubtless remember his features, and had an ocular proof of his being the very person, which they could with great evidence relate unto Jacob; as also his voice in speaking: that [it is] my mouth that speaketh unto you; without an interpreter, as Aben Ezra, and in the Hebrew language, as the Targum and Jarchi; which might confirm them, and likewise their father upon their report, that the governor was not an Egyptian, but an Hebrew; and by…”

“- Joseph Made Himself Known to His Brethren 10. גשׁן gôshen, Goshen, Gesem (Arabias related perhaps to גשׁם geshem “rain, shower”), a region on the borders of Egypt and Arabia, near the gulf of Suez. The appeal of Judah is to Joseph irresistible. The repentance of his brothers, and their attachment to Benjamin, have been demonstrated in the most satisfactory manner. This is all that Joseph sought. It is evident, throughout the whole narrative, that he never aimed at exercising any supremacy over his brothers. As soon as he has obtained an affecting proof of the right disposition of his brothers, he conceals himself no longer. And the speech of Judah, in which, no doubt, his brothers…”