In that day, the Lord, GOD of Armies, called to weeping, to mourning, to baldness, and to dressing in sackcloth; and behold, there is joy and gladness, killing cattle and killing sheep, eating meat and drinking wine: “Let’s eat and drink, for tomorrow we will die.” The LORD of Armies revealed himself in my ears, “Surely this iniquity will not be forgiven you until you die,” says the Lord, GOD of Armies.
Stated in text
Isaiah 1:1 names Isaiah.
Echoed by
Paul
in 1 Corinthians 15:29-34