Midrash su Isaia 22:22

What do the words craftsmen and smiths imply? The word “craftsmen” (haras) indicates that when one of them spoke, all the others were made speechless (haresin) by the power of his argument. The word “smiths” signifies that when one of them closed a case (playing on mesager, “smith,” and soger, “close”), on purity or impurity, prohibition or permission, no one in all the world was able to reopen the argument. This was in fulfillment of the verse And the key of the House of David will I lay upon his shoulder, and he shall open and none shall shut; and he shall shut and none shall open (Isa. 22:22).

"both virgin": They were clean of sin, as a virgin, who had never tasted the taste of sin. "suckling": They sucked words of Torah as a babe sucks milk from its mother's breasts. "with the man of grey hairs": Read it not "ish seva" ("the man of grey hairs"), but "ish yeshivah," being fit to sit in "yeshivah" (a consortium of Torah scholars). And thus is it written (of the exiles, II Kings 24:16) "and the charash and the masger, one thousand, all heroes, waging war." Now what feats of strength are performed by men going into exile? What war is waged by men bound in chains? Rather, (the meaning is that they were) "heroic" in the war of Torah. As it is written (Psalms 103:20) "Bless the L-rd, O His angels, heroic in power, doing His word to hear the voice of His word." (II Kings, Ibid.) "waging war": "giving and taking" in the "war" of Torah, viz. (Bamidbar 21:14) "Therefore, it is said in the Book of the wars of the L-rd, etc." (II Kings, Ibid.) "the charash" (lit., "mute"): One (of these scholars) speaks and the rest remain silent. "and 'the masger'" (lit., the "closer": All sit before him and learn from him. After he "closes," no one "opens," and after he "opens," no one "closes," in fulfilment of (Isaiah 22:22) "And he (David) will open, and none will close; and he will close, and none will open."