We've already acknowledged the cheerful heart with which the people of Israel donated monies and materials toward the construction of the temple. They were a grateful people, who cheerfully gave to make the construction of the temple a success.
Here we have another illustration of this building project's importance. This was not the kind of construction project where the contract was awarded to the lowest bidder. Without proper oversight that process can lead to inferior materials being substituted for those in the engineering specs. There was no cutting of corners in building Solomon's Temple. Only the best was good enough for God.
Precious stones were used where the substitution of cubic zirconium would have never been detected. This is where I'd add a little smiley face if this were an email. And when it came to the overlays, no one was tempted to get by with 10-carat gold. They used the gold of Parvaim, the finest gold money could buy.
When you leave your gift at the altar (be it money, time or talent), can you walk away satisfied you've given your very best?