'Once' in the Bible

And other [seed] fell on the rocky ground, where it did not have much soil, and it sprang up at once because it did not have [any] depth of soil.

And if anyone says anything to you, you will say, 'The Lord {needs them},' and he will send them at once."

And seeing a single fig tree by the road, he went to it and found nothing on it except leaves only. And he said to it, "May there be no more fruit from you {forever}, and the fig tree withered at once.

And [when they] saw [it], the disciples were astonished, saying, "How did the fig tree wither at once?"

Or do you think that I cannot call upon my Father, and he would put at my disposal at once more than twelve legions of angels?