According to the author of the book, these golden flowers, lamps, and tongs were made to be very special and perfect because they were to be used in God's temple. This shows how important and precious the temple was, as only the best and most beautiful things were made for it.
2 Chronicles 4:21: And the flowers, and the lamps, and the tongs, [made he of] gold, [and] that perfect gold; [perfect...: Heb. perfections of gold]
Warns against making graven images, while 2 Chronicles 4:21 describes the making of ornamental works for the temple.
Exodus 20:4: Thou shalt not make unto thee any graven image, or any likeness [of any thing] that [is] in heaven above, or that [is] in the earth beneath, or that [is] in the water under the earth: