Reference for Exodus 38:6

וַיַּ֥עַשׂ אֶת־הַבַּדִּ֖ים עֲצֵ֣י שִׁטִּ֑ים וַיְצַ֥ף אֹתָ֖ם נְחֹֽשֶׁת׃

And he made the staves of acacia-wood, and overlaid them with brass.

BDB