1)
What is the significance of 20 years?
1.
Rashi: It is after seven years to build the Beis ha'Mikdash, and 13 years to build his own house (6:38, 7:1).
What is the significance of 20 years?
Rashi: It is after seven years to build the Beis ha'Mikdash, and 13 years to build his own house (6:38, 7:1).