"
iusti meditabitur sapientiam,
Et lingua eius loquetur indicium.
Beatus
The line "et lingua eius loquetur indicium" is best translated into English as "and his tongue shall speak judgement". "Lingua" literally translated means "tongue", and "loquari (loquetur)" is a deponent verb, meaning its form is passive but meaning is active. The whole first bit is best translated as, "The mouth of the just man shall hand down wisdom and his tongue shall speak judgement."