פּירוש אויף ישעיהו 8:3

and she bore a son He is the very son whom the prophetess called Immanuel, since the Holy One, blessed be He, would be at the aid of Hezekiah when he would reign. [It is impossible to say that it was another son, for we learned [in Seder Olam ch. 22] that in the fourth year of Ahaz, this prophecy was said, and in the fourth year of Ahaz, Pekah was assassinated, and it is impossible for two children to be born in one year, one after the other.] And Isaiah his father called him Maher-shalal-hash-baz, because of the calamity destined to befall Rezin and the son of Remaliah, who were coming to wrest the kingdom from the House of David and to curtail the kingdom of Hezekiah.

ואקרב. And I went unto. Euphemism; comp. Exod. 19:15.

The prophetess. The wife of the prophet; she is called prophetess on account of her husband being a prophet, or perhaps because she was herself a prophetess.