Two days before the conclusion of the thirty-day mourning period following the passing of Moses on Adar 7 (see Jewish History for the 7th of Nissan), Joshua dispatched two scouts--Caleb and Pinchas--across the Jordan River to Jericho, to gather intelligence in preparation of the Israelites' battle with the first city in their conquest of the Holy Land. In Jericho, they were assisted and hidden by Rahab, a woman who lived inside the city walls. (Rahab later married Joshua).
Link:
The Two Spies
R. Avraham Yehoshua Heshel was one of the leading Rebbes of his day, serving as rabbi and spiritual leader first in Apta (presently called Opatow), then in Iasi, and finally in Mezhibuzh. He was known for his great love of his fellow Jews, and is commonly known as “the Ohev Yisroel [lover of Jews] of Apta.”
Link: Special Powers
In today's "Nasi" reading (see "Nasi of the Day" in Nissan 1), we read of the gift bought by the nasi of the tribe of Shimon, Shlumiel ben Tzurishadai, for the inauguration of the Mishkan.
We are one because we share a single soul, like a single, brilliant sun shining into many bodies. Since the soul is what counts, that makes us essentially one.
That is the meaning of the mitzvah of the Sukkah—a place that encompasses us all equally, rendering us a single whole.
We are also one because none of us are alike. Each of us reflects a different facet of that same soul, each of us with our strengths and our weaknesses, so that we all need one another to be whole and complete.
That is the meaning of the mitzvah of the Lulav, the Etrog, the Hadassim and the Aravot—four very diverse species, each containing that which the others lack.
And that is why this mitzvah is best done inside the Sukkah: To draw the oneness of our shared soul into the harmony of our diverse bodies.