In this weeks parsha, Parshat Termuah, the building of the Mishkan is described.
In Perek 25: 11: the Torah says, "וְצִפִּיתָ אֹתוֹ זָהָב טָהוֹר מִבַּיִת וּמִחוּץ תְּצַפֶּנּוּ"
This translates to "And you shall cover it with pure gold on the inside and on the outside you shall cover it".
Talmud Bavli 72B says that Betzalel, the architect of the Mishkan, was to make 3 arks, one of gold for the inside, one of gold for the outside and one made of wood in the middle. The question is raised of the wooden, inner ark, why not just make it gold? The Mishkan is a very holy place, surely expense was no issue, so why "downsize" the center ark and make it out of wood?
The Daat Zekenim answers that had the ark been made of 100% gold it would have been too heavy to carry.
From here we can learn an important lesson about God's consideration of Bnei Yisrael in the Midbar. The ark carried the broken remains of the shattered tablets, the ultimate sign of Bnei Yisrael's rebellion against God. By making transporting these symbolic remains easier for Bnei Yisrael, Hashem was essentially making a concession despite their egregious sin, demonstrating His mercy and glory in a tangible way.
Q1) Why else was the center ark wooden?
Q2) Where else do we see this idea of Hashem making concessions for Bnei Yisrael?
Q3) Is there any other significance to the particular materials used in the Mishkan?