We reveal Jesus’ value to us by what we do for Him. Others may see (or smell) how much we value Him. Mary revealed Jesus’ value with her wealth (perfume) and her glory (hair is a woman’s glory scripture says). The more you know someone the more you value them. It’s hard to devalue someone you know intimately. Mary, Martha and Lazarus were intimate friends with Jesus. Is it any wonder she showed Him so much value?
John 12:3 “Mary took a pound of very expensive perfume, made of pure nard. She anointed Jesus’s feet with it, and wiped his feet with her hair. The house was filled with the smell of the perfume.”