The word 'virgin' shows up in many places, where it symbolizes the Lord's kingdom and the church and therefore anyone who is a kingdom of the Lord, or who is a church. (Arcana Coelestia 3081)

In Genesis 24:16, a virgin signifies purity from all falsity.

In Leviticus 21:13 and Ezekiel 44:22, virgins signify the celestial church and people of the church who love the neighbor from their love of the Lord. That this might be represented in the Jewish Church, the priests were enjoined to marry virgins or the widow of another priest. (Arcana Coelestia 2362[4])

'Virgins,' as in Revelation 14:4, signify people who love truths because they are truths, so from a spiritual affection.

'Virgin' signifies the church as a spouse, who desires to be conjoined to the Lord, and to become a wife. The church that desires this union loves truths because they are truths. When life lived according to truths conjoins. This is why Israel, Zion, and Jerusalem, in the Word, are called 'virgins' and 'daughters' because they represent the church.