The first has been over the precise meaning and origin of the phrase with which he revealed his momentous decision. (newlawjournal.co.uk)
-- although the exact origin of the phrasing is unknown, it is believed to have originated from older times when sickness posed a more immediate and significant threat. (howtogeek.com)
As for the origin of the phrase, my team of research capuchins initially determined William Shakespeare coined the expression in 1606. (canadianbusiness.com)