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.
For this - on account of the desolations just described.
Earth mourn ... heavens above be black - (Isaiah 5:30; Hosea 4:3).
Not repent - (Numbers 23:19, "God is not a man that He should lie, neither the son of man that He should repent").