For this shall the earth mourn, and the heavens above be black; expressions to set forth the dreadfulness of the judgment; he makes the elements to personate mourners, a sad face of things above and below, a metaphor, and therein to shame the stupidity of his people. Because I have spoken it: q.d. You would not believe either that my prophets spake, or what they said; now I tell you I speak myself, and what I have resolved upon I will not revoke; see Ezekiel 24:13,14, and Jeremiah 15:6; for I have purposed it; I have not spoken in my heat or fury, but upon mature deliberation; an anthropopathy; or, what the prophets have denounced I will ratify.
Related Commentaries of Jeremiah 4:28
Jeremiah 4:28
28 For this shall the earth mourn, and the heavens above be black: because I have spoken it, I have purposed it, and will not repent, neither will I turn back from it.