וַיַּ֤עַשׂ אֶת־הַבַּדִּים֙ עֲצֵ֣י שִׁטִּ֔ים וַיְצַ֥ף אֹתָ֖ם זָהָ֑ב לָשֵׂ֖את אֶת־הַשֻּׁלְחָֽן׃
And he made the staves of acacia-wood, and overlaid them with gold, to bear the table.
Read kabbalistic (mystical) interpretation of Exodus 37:15: and classical mystical sources.