DIRECTLY FROM HASHEM
Source: Taanis 2a Having children, which is discussed in this week's Parsha, is one of three very special things. These things are special because they are the only three things which man needs, that Hashem Himself looks after and has not given to angels to watch after. The other two things are rain and tchias hameisim - the coming alive of the dead, which will happen in the days of Geulah.
THE REBIRTH OF THE JEWISH NATION
Source: Yeshayahu 66:8 This parsha begins by discussing a woman who gives birth to a child. Giving birth to a child is compared by the navi Yeshayahu to the geulah. Just as birth takes place in a day, the geulah can come and the Jewish nation be reborn in a moment.
Source: Vayikra Rabba 14:9 Today, a woman who has a child goes through nine months of difficult pregnancy and then has a painful birth. But when the geulah comes, childbirth will be painless and there will not be nine months of pregnancy beforehand.
MUCH MORE TORAH!
Source: Pesachim 50a The laws of Tzoraas are from some of the most difficult in the entire Torah. But when the geulah comes, they will be learned very easily. The novi Zechariah (14:6) compared it to something heavy, which sinks in the water, as compared to something frozen, which floats on top of the water. Even the most difficult parts of Torah will be so light that they will float !
HASHEM HIMSELF WILL PURIFY
Source: Vayikra Rabba 15:9 In this Parsha we learn about those who became unclean because they had tzoraas. Only a Kohen could make them again clean and pure. When the geulah comes, Hashem Himself will make pure those people who become impure.
TZORAAS AS A PUNISHMENT
Source: Tanchuma 11 When the Geulah comes, Hashem will go to Edom, who kept the Bnei Yisroel in golus all these years, and Hashem will ask them, Why were you so cruel to my people? And Edom will answer: But You gave them to us so that we can enslave them! Hashem will answer: But you still should have had mercy on them! Since they were so cruel to the Bnei Yisroel in golus, Hashem will punish them with Tzoraas when the Geulah comes.
SIGNS OF GEULAH
Source: Sanhedrin 97a In the laws of Tzoraas, a white mark on a persons skin is usually a sign of tumah (impurity). But one law shows the opposite: if the persons entire skin turns white, it is a sign of taharah (purity)! Rabbi Yitzchok says that the same applies to the state of the world before the Geulah. When lack of belief in Hashem (which is tumah) spreads all over the world, it is a sign that the Geulah is coming. And this should, of course, cause us to strengthen our faith.