Do somebody an honour
Definition 1 of 1
Pro Tip 1/3Special Occasions
The phrase is often used during ceremonies or events to honor someone's achievements or presence. 
Would you do me the honour of cutting the ribbon at the opening ceremony?
Pro Tip 2/3Humble Gratitude
Used to express sincere appreciation when someone has done something you deeply value. 
You do me a great honour by mentoring me through this project.
Pro Tip 3/3Cultural Sensitivity
In some cultures, this phrase expresses profound respect and can be a formal way to thank someone. 
By accepting our invitation, you do our community an honour.