Isaiah 37:4

4. It may be Peradventure, possibly, perhaps.

The Lord thy God will hear Jehovah will not fail to inflict vengeance on the blasphemy poured on his name this day by Rabshakeh, in behalf of his master, Sennacherib. The king puts this timidly, as though he hardly dared to hope; yet he does, and opens the apodosis of the sentence with a wherefore, or therefore, lift up thy prayer, namely, to Heaven. The idea here is, not merely a mental prayer, but one of deep struggle, of importunity and strong utterance.

For the remnant that is left Namely, Jerusalem and its people. This city only had been prepared to resist invasion. All the villages round about were open to sack and overthrow.