3 I foretold the former things long ago, my mouth announced them and I made them known; then suddenly I acted, and they came to pass.

Read Isaiah 48:3 Using Other Translations

I have declared the former things from the beginning; and they went forth out of my mouth, and I shewed them; I did them suddenly, and they came to pass.
"The former things I declared of old; they went out from my mouth, and I announced them; then suddenly I did them, and they came to pass.
Long ago I told you what was going to happen. Then suddenly I took action, and all my predictions came true.