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When I read about the Judas substitute in early church I become very curious about "to give lot" to choose the new apostle.
And they put forward two, Joseph called Barsabbas, who was surnamed Justus, and Matthias. And they prayed, and said, Thou, Lord, who knowest the hearts of all men, show of these two the one whom thou hast chosen, to take the place in this ministry and apostleship from which Judas fell away, that he might go to his own place. And they gave lots for them; and the lot fell upon Matthias; and he was numbered with the eleven apostles. Acts 1:23-26 ASV
I know that in the Old Testament, it was common use Urim and Thummim, for example, to make a decision.
But I want to know how the apostles gave lots for them, what means give lot in that context?