A Midrash taught that the righteous learn from God's example in creating the world that in beginning any work they should start with light. Thus when God told Moses to build the Tabernacle, Bezalel pondered with what thing he should begin. He concluded that he had better start with the Ark (in which the Israelites would deposit the Torah, the light of the world). And thus commences the report of the construction of the Tabernacle's furnishings, "And Bezalel made the Ark."