NET
9 Ointment and incense make the heart rejoice, likewise the sweetness of one’s friend from sincere counsel.
Darby
9 Ointment and perfume rejoice the heart; and the sweetness of one's friend is [the fruit] of hearty counsel.
KJV
9 Ointment and perfume rejoice the heart: so [doth] the sweetness of a man's friend by hearty counsel.