'Instant' in the Bible

Moreover the multitude of thy strangers shall be like small dust, and the multitude of the terrible ones shall be as chaff that passeth away: yea, it shall be at 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 at an instant.

At what instant I shall speak concerning a nation, and concerning a kingdom, to pluck up, and to pull 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;

And she coming in that instant gave thanks likewise unto the Lord, and spake of him to all them that looked for redemption in Jerusalem.

And they were instant with loud voices, requiring that he might be crucified. And the voices of them and of the chief priests prevailed.

Rejoicing in hope; patient in tribulation; continuing instant in prayer;

Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine.