The phrase "honourable minister" is used to show respect to someone who holds a position of power and influence in the government. It acknowledges their importance and the respect they deserve for their work. Full definition
Baru, who took over the mantle of leadership of NNPC from Honourable Minister of State for Petroleum Resources, Dr. Ibe Kachikwu, July 4 2016, said already NNPC had lowered operating costs of production from $ 27 / barrels to $ 22 / barrels. (nigeriapoliticsonline.com)
In his speech, the Vice-Chancellor of ABU, Prof. Ibrahim Garba, saluted the former minister for accepting to go back to classroom after serving as honourable minister. (newsdiaryonline.com)
Consultation To: The Honourable Minister McKenna From: Elizabeth May, O.C. Member of Parliament Saanich - Gulf Islands Leader, Green Party of Canada Date: January 27, 2017 Dear Minister McKenna, I am writing to contribute to the «Let's Talk Parks, Canada!» (elizabethmaymp.ca)