3 sentences

1. 他从小就信奉天主教。

   tā cóng xiǎo jiù xìn​fèng Tiān​zhǔ​jiào.

   He has been a Catholic since he was a child.

   Source: Dong Chinese Dictionary

2. 在哥伦比亚，天主教习俗盛行。

   zài Gē​lún​bǐ​yà, Tiān​zhǔ​jiào xí​sú shèng​xíng.

   In Colombia, Catholic customs prevail.

   Source: Tatoeba

3. 我在天主教档案室有个朋友。

   wǒ zài Tiān​zhǔ​jiào dàng'àn​shì yǒu gè péng​you.

   I have a friend in the Catholic archives.

   Source: OpenSubtitles