Yesaya 8:18

8:18 Look, I and the sons whom the Lord has given me ¹  are reminders and object lessons ²  in Israel, sent from the Lord who commands armies, who lives on Mount Zion.

Zakharia 3:8

3:8 Listen now, Joshua the high priest, both you and your colleagues who are sitting before you, all of you ³  are a symbol that I am about to introduce my servant, the Branch. ⁴ 

[8:18]  ¹ sn This refers to Shear-jashub (7:3) and Maher-Shalal-Hash-Baz (8:1, 3).

[8:18]  ² tn Or “signs and portents” (NAB, NRSV). The names of all three individuals has symbolic value. Isaiah’s name (which meant “the Lord delivers”) was a reminder that the Lord was the nation’s only source of protection; Shear-jashub’s name was meant, at least originally, to encourage Ahaz (see the note at 7:3), and Maher-Shalal-Hash-Baz’s name was a guarantee that God would defeat Israel and Syria (see the note at 8:4). The word מוֹפֶת (mofet, “portent”) can often refer to some miraculous event, but in 20:3 it is used, along with its synonym אוֹת (’ot, “sign”) of Isaiah’s walking around half-naked as an object lesson of what would soon happen to the Egyptians.

[3:8]  ³ tn Heb “these men.” The cleansing of Joshua and his elevation to enhanced leadership as a priest signify the coming of the messianic age.

[3:8]  ⁴ sn The collocation of servant and branch gives double significance to the messianic meaning of the passage (cf. Isa 41:8, 9; 42:1, 19; 43:10; 44:1, 2, 21; Ps 132:17; Jer 23:5; 33:15).