Not only did David gather materials for building the Temple, he began preparing the Levites for the shift that they would experience regarding worship.
As with everything else in the books of law, for everything God commanded the Israelites to do, He had to provide a how-to and consequences for no abiding His instructions. The end of Leviticus 6 clarifies what is necessary for trespass offerings with respect to whether the sinner committed the sin willfully or ignorantly. Leviticus 7 goes on to provide additional information on the types of offerings listed in Leviticus 1-6.
. Born to Amaram and Jochebed, Aaron, the brother of Moses, becomes the first priest of the Israelites; through him begins the priesthood of Israel. Generally, Aaron is considered the eldest since he is listed first in the genealogies presented in Exodus; his position as eldest can be proven in Exodus 7:7.
The Israelites carry out God's instructions. In Exodus 35, we are taken back to the task of constructing the tabernacle and installing Aaron as priest. Much of the material in these chapters seems redundant, since Moses is simply confirming that they built everything to God's specification. However, there are bits of new information in these verses and it is important to note the diligence the Israelites took in maintaining God's standard.
Aaron and his sons are called to the priesthood. In these chapters, we learn about the details of the priesthood which foreshadow the comping of Jesus Christ! We know that God designed the universe, but how often do we stop to think of Him as a fashion designer? He designed the priestly robes and all the details are laid out in the Bible for us. Have you ever wondered why certain colors are always present in the sanctuary? That's also covered in these chapters!