Exodus 36:20
"And he made boards for the tabernacle of shittim wood, standing up."
Cross References (ranked by relevance)
Exodus 25:5
And rams’ skins dyed red, and badgers’ skins, and shittim wood,
Deuteronomy 10:3
And I made an ark of shittim wood, and hewed two tables of stone like unto the first, and went up into the mount, having the two tables in mine hand.
Exodus 25:10
And they shall make an ark of shittim wood: two cubits and a half shall be the length thereof, and a cubit and a half the breadth thereof, and a cubit and a half the height thereof.
Numbers 25:1
And Israel abode in Shittim, and the people began to commit whoredom with the daughters of Moab.