The number three in the Bible represents completeness. That's why Jesus rose on the third day after the Crucifixion -- his transformation was complete. It's why Elijah stretched himself on the dead child three times, why Jonah was in the belly of the fish for three days, why the Lord called Samuel three times, and many more. It's also reflected in the fact that there are three levels of heaven, three levels of hell, three levels to human life and, ultimately, three aspects of the Lord Himself: Father, Son and Holy Spirit.

4510. 'And their women' means charity. This is clear from the meaning of the words for 'woman' and 'wife' (femina, mulier, uxor) as affections for truth and affections for good. Affections for truth are meant when the partner is mentioned or when the expression 'husband' is used, affections for good when the partner is not mentioned or when the term 'man' is used, 915, 1468, 2517, 3236. At present affections for good are meant because the women belonged to the men of the city, who meant truths, 4478 (end), and because the city is everywhere called the city of Shechem, who represented the truth of the Church among the Ancients, 4454. The affection for spiritual good is the same as charity, and this is why 'women' here means charity.