Lenten Sx-Ed

I am preparing the Vulgate text of Psalm 50 for my Latin students to memorize and study during Lent. When I came to this verse, I thought "Boy am I glad these kids don't know anything about female reproductive anatomy!" There are TWO distracting anatomical terms in this verse.

Domine labia mea aperies et os meum adnuntiabit laudem tuam.

Don't tell my kids!