1) It had become a point of honour not to tell him about Lori.

2) I always pay my debts punctually; it's a point of honour with me.

3) Yet it had become a point of honour not to tell him about Lori.

4) It's a point of honour among lawyers.

5) Frank made the debt a point of honour and paid off every penny.

6) It was a point of honour with the washwoman to return the wash to its rightful owner.

7) It had become a point of honour not to tell him about this.

8) Some gentlemen seem to have considered it as a point of honour.