Perhaps you do not understand because Roman Catholics do not have the same ten commandments.
Ummm, yes they do.
Same text as everyone else.
https://en.wikipedia.org/wiki/Ten_Commandments#Enumeration_of_the_Ten_Commandments
Flatly, they do not. 2 is rolled into 1 to support imagery, and their then missing one is pulled out of the middle of 10 and made 9 to make up for the gap.