|In Zohar Yitro #212 we read that King David, who brought the seed of Mashiach to this world, had seven types of gold hair.
His face looked like greenish gold. His beard like the gold of Ophir. His eyebrows like the gold of Sheva, his eyelashes like the gold of Parvayim. His head hair was pure gold as on his chest, over his heart. On his two arms the look of gold from Tarshish. All seven types/looks of gold were registered on the hair of his body, in the places we mentioned.
Gold is an aspect of Left, Gevurah, and as described above, it represents seven levels of Mashiach’s strength.
B”H We see the revelation of Mashiach soon in this world.