16 And the children of the captivity did so. And Ezra the priest, with certain chief of the fathers, after the house of their fathers, and all of them by their names, were separated, and sat down in the first day of the tenth month to examine the matter.
[AD 735] Bede on Ezra 10:16
And they sat on the first day of the tenth month, etc. Note that the number three is very commonly used in mystical figures. It was previously said that in three days all the sons of the diaspora should come to Jerusalem; and now in three months, namely the tenth, eleventh, and twelfth, they are punished by foreign wives. For there are three virtues without which we cannot attain life: faith, hope, and charity. Coming into the world at the third time of the age, the Lord bestowed upon us the grace of the Gospel. For the first time was before the law with the patriarchs, the second with the prophets under the law, in the third He Himself came with grace; because redeeming us by His passion, He rose from the dead on the third day; through whose grace, both by being joined in fellowship with the holy Church and by being cleansed from the allurements of vices, aptly the sons of the diaspora, having to be corrected from their errors in three days, convened in Jerusalem, and in three months completed their task of correction. But also literally, the leaders of the families and the Levites worked opportunely and salutarily so that before the beginning of the first month all those who were stained by profane marriage were completed; that is, they were cleansed from such a crime, so that they could enter the first month, in which the Passover was to be held, pure, and could celebrate the Paschal feast pure, and could begin and continue the year pure. This is also suitable for us to imitate every year in Lent in preparation for Easter, so that as the solemnities of the Lord's Resurrection approach, we cleanse ourselves from all defilement of flesh and spirit, so that we may also be able to be partakers of the Resurrection.