Maybe I misunderstand you, the number three is an important 'holy' number in the Catholic faith, and is throughout the bible. The trinity is made up of three, there were three gifts of the wisemen, peter denied Jesus three times, the sign of the cross is broken down to be made up of three parts, etc...

Freemasonry is declared an excommunicative issue, however the word pyramid is the only thing I might have an issue with in the above. More concerning to me, which I have yet to confirm, is the raising of his children outside the faith as some have told me