Isaiah 37:3

“And they said unto him, &c.] The messengers to the prophet: thus saith Hezekiah; this is the message he has sent us with; this is what he would have us lay before thee, and has given us in charge to say unto thee: this day is a day of trouble, and of rebuke, and of blasphemy; it was a “day of trouble” to Hezekiah and his people, because it was a “day of rebuke”, in which God rebuked them for their sins; or of “reproach and reviling”, as the Targum and Septuagint, in which the Assyrians reviled and reproached both God and them; and especially because it was a “day of blasphemy” against God: for the children are come to the birth, and there is not strength to bring forth; which is to be…”

“rebuke--that is, the Lord's rebuke for His people's sins (Psa 149:7; Hos 5:9). blasphemy--blasphemous railing of Rab-shakeh. the children, &c.--a proverbial expression for, We are in the most extreme danger and have no power to avert it (compare Hos 13:13).”

“This is a day of rebuke - This may refer either to the reproaches of Rabsbakeh, or more probably to the fact that Hezekiah regarded the Lord as rebuking his people for their sins. The word which is used here (תוכחח tôkēchâh), means more properly chastisement or punishment Psalms 149:7; Hosea 5:9. And of blasphemy - Margin, ‘Provocation.’ The word used here (נאצה ne'âtsâh), means properly reproach or contumely; and the sense is, that God and his cause had been vilified by Rabshakeh, and it was proper to appeal to him to vindicate the honor of his own name Isaiah 37:4. For the children are come ... - The meaning of this figure is plain. There was the highest danger, and need of aid. It…”

“his day, Isa 25:8, Isa 33:2; Kg2 19:3; Ch2 15:4; Psa 50:15, Psa 91:15, Psa 116:3, Psa 116:4; Jer 30:7; Hos 5:15, Hos 6:1; Rev 3:19 blasphemy: or, provocation, Psa 95:8 for the: Isa 26:17, Isa 26:18, Isa 66:9; Hos 13:13 Isaiah 37:4”