Charles Ellicott Commentary Exodus 35:26

"And all the women whose heart stirred them up in wisdom spun the goats` [hair]." — Exodus 35:26 (ASV)

All the women whose heart stirred them up in wisdom spun goats’ hair.—It would seem to have been more difficult to produce a thread from goats’ hair than from flax. Only the most skillful undertook the more difficult task.