I wish to state respectfully that ...
A very formal, humble expression used in official letters, speeches, or announcements to preface a statement with deep respect.
I wish to state respectfully: I sincerely congratulate you on this occasion.
I wish to state respectfully: I sincerely pray for everyone's health and happiness.
The adverbial form meaning 'respectfully' or 'humbly'; used in other formal expressions like 謹んでお悔やみ申し上げます.
A set phrase combining the adverbial form of 謹む (to be respectful/humble) and the humble verb 申し上げる (to say).