'Instant' in the Bible

But the multitude of thy foes shall be like small dust, and the multitude of the terrible ones as chaff that passeth away: yea, it shall be in an instant suddenly.

therefore this iniquity shall be to you as a breach ready to fall, swelling out in a high wall, whose breaking cometh suddenly in an instant.

At what instant I shall speak concerning a nation, and concerning a kingdom, to pluck up and to break down and to destroy it;

And at what instant I shall speak concerning a nation, and concerning a kingdom, to build and to plant it;