Blue, purple, scarlet

The priestly garments were made of blue, purple and scarlet yarn. The ephod, waistband, breastplace were of these colors along with pieces of gold and precious stones. The robe was made of entirely blue cloth. Pomegranates (blue, purple and scarlet) were woven into the robe and bells were hung in between the pomegranates. The sash was also made of blue, purple and scarlet yarn. I wonder why these three colors were used? Did they have symbolic meaning? How do they point to Jesus? These are questions that I will hopefully be able to answer soon. The phrase "Holy to the Lord" was inscribed on the sacred diadem which was placed on the turban. I believe this was on the forehead, which is significant. When Jesus comes again we will be given a new name and it will be written on our forehead (Rev 7:3, 9:4).
Moses set up the tabernacle. It doesn't say that he had help setting it up. He had help building it, but as to setting it up and anointing everything...that was his task. That would have been quite the task.
I have a lot of questions about these verses and wonder how this all points to Jesus.