Just imagine being going back thousands of years to the land of Israel. People are streaming into Jerusalem because it’s the special day that the High Priest is going to plead to God for the forgiveness of their sins.
You look at this dude, the high priest. His robes, works of art in themselves, drape his entire body. On his chest is a strange-looking square that sparkles. If you could get up close, which you couldn’t, you would see twelve jewels attached to it-unique in colors. If you could get really close, you’d see something written on each jewel. You put on your bifocals. Each stone has the name of one of the twelve tribes of Israel inscribed on it. This is a shadow of Jesus, our High Priest who died for our sin, once and for all. Just like the names of the 12 Tribes were inscribed on the breastplate jewels, your name and mine were inscribed on Jesus’ palms. (Isaiah 49:15)
You are His jewel!

Making a breastplate would be a lovely family activity and way to teach the kids about how special they are to Jesus.

“….We do have such a high priest, who sat down at the right hand of the throne of the Majesty in heaven…” (Hebrews 8:1)