See from this passage that God does not just call those that are already capable, but he gifts those who He calls. Skilled work needed to be done constructing the Tabernacle and its furniture, God chose and then gifted with skill, wisdom and ability those He chose. Too often we limit God by thinking only those who have certain talents to do the work. Instead we should be aware if God is doing something and desires us to participate, He will gift us to do His work and not just wait until someone shows up with that talent or ability.