Midrasz do Zachariasza 9:15

R. Zutra said in the name of Rab: "What is the meaning of the passage (Ps. 144, 12), So that our sons may be like plants, grown up in their youth. This refers to the youth of Israel who never has experienced the taste of sin; (Ib. ib.) Our daughters, like corner pillars, refers to the virgins of Israel who forbid intimacy with their betrothed [according to strict religious ordinances] and the same is meant by the passage (Zech. 9, 15) And they shall be filled like the basins, like the corners of the altar. And if you please, you may say this is inferred from (Ps. 144, 13) May our garners be full, furnishing all manner of store; our sheep bringing forth thousands and tens of thousands in our open pastures. (Ib. ib., 12) Sculptured on the model of a Hechal (Temple); i.e., both these and those (the youth and the virgin) are worthy that the Temple should be built in their days."