42So the sons of Israel did all the work according to all that the LORD had commanded Moses.
43And Moses examined all the work and behold, they had done it; just as the LORD had commanded, this they had done. So Moses blessed them.
When something is repeated in Scripture, it's important to stop and consider why God emphasized that idea. These repeated words or phrases are called Key Word or Phrases. If you remove them from the text, you lose the meaning of what God was communicating. In Exodus, especially in chapters 39-40, you see the repeated phrase, "just as the LORD had commanded them." Without these words, the origin and the purpose of the Tabernacle are lost. It would just be another beautiful work of man for man's benefit. But it wasn't. It was a God designed structure to serve as an earthly meeting place for God and man. God commissioned men to build it. God gave them the detailed instructions and skill to make each part of it. Even the clothes the priests wore were part of the design with real gold threads cut and woven into them. However, my favorite part is the plate of gold on the headpiece that read "Holy to the LORD."
When the craftsmen were done, Moses inspected the work to make sure everything was just as God had commanded, it was and he blessed them.