And say unto him, Take heed, and be quiet; fear not, neither be fainthearted for the two tails of these smoking firebrands, for the fierce anger of Rezin with Syria, and of the son of Remaliah.
Take heed, and be quiet; fear not - i:e., see that thou be quiet (not seeking Assyrian aid in a fit of panic).
Neither be faint-hearted for the two tails of these smoking firebrands - mere ends of firebrands almost consumed themselves (about soon to fall before the Assyrians, Isaiah 7:8), therefore harmless.
Smoking - as about to go out; not blazing.
The son of Remaliah - Pekah, an usurper, having killed Pekahiah, the preceding king (2 Kings 15:25). The Easterns express contempt by designating one, not by his own name, but by the father's, especially when the father is but little known (1 Samuel 20:27; 1 Samuel 20:31).