Esther 8:17

And in every province and in every city whithersoever the king's commandment and his decree came the Jews had joy and gladness, a feast and a good day, for the threatening peril had been averted, which was reason enough for a holiday. And many of the people of the land became Jews, became proselytes to the Jewish faith; for the fear of the Jews fell upon them, they saw in all these events the ruling hand of God and therefore acknowledged Him who was so evidently on the side of the Jews. In the time of the New Testament also there are special times of grace, when God does great things for His Church, and therefore many hearts are turned to Him in true faith.