Optative

Optative verbs are used to express wishes or desires.

Αὐτὸς δὲ ὁ Θεὸς τῆς εἰρήνης ἁγιάσαι ὑμᾶς ὁλοτελεῖς
And may the God of peace himself sanctify you in all things;
Ὁ δὲ Θεὸς τῆς ἐλπίδος πληρώσαι ὑμᾶς πάσης χαρᾶς καὶ εἰρήνης ἐν τῷ πιστεύειν
Now may the God of hope fill you with all joy and peace in believing