Os Justi Meditabitur- Anton Bruckner

Background: This song was written in Latin and I believe is a piece from the bible. The lyrics themselves are short and are repeated like in most motets. They go like this:

Os justi meditabitur sapientiam,
et lingua ejus loquentur judicium.
Lex Dei ejus in corde ipsius
et non supplantabuntur gressus ejus.

Translation:

The mouth of the righteous utters wisdom,
and his tongue speaks what is just.The law of his God is in his heart;and his steps will not be impeded.Alleluia.

Progress on the song: I'm not that worried about this song because it's very repetitive when you get the hang of the tune. It's more the lyrics that I'm struggling with. I just need to work on what goes where and how long the words are dragged out. Other than that I'm feeling pretty good about the song.