Berean Study Bible (BSB) - Psalms 133:2 >

It is like fine oil on the head, running down on the beard, running down Aaron’s beard over the collar of his robes.

Jewish Publication Society of America Version (JPS1917) - Psalms 133:2 >

It is like the precious oil upon the head, coming down upon the beard; even Aaron's beard, that cometh down upon the collar of his garments;