Exodus 38:6 KJV

And he made the staves of shittim wood, and overlaid them with brass.
Exodus 38:6, King James Version

In context

5 And he cast four rings for the four ends of the grate of brass, to be places for the staves.

6 And he made the staves of shittim wood, and overlaid them with brass.

7 And he put the staves into the rings on the sides of the altar, to bear it withal; he made the altar hollow with boards.