# He built

"Solomon commanded them to build".  

# the Palace of the Forest of Lebanon

"the house called the House of the Lebanon Forest"

# one hundred cubits ... fifty cubits ... thirty cubits

"46 meters ... 23 meters ... 13.8 meters". A cubit is 46 centimeters. 

# beams

A beam is a long piece of strong wood used to support walls and roofs.