To exult (ἀγαλλιάω agalliaō)

In the same hour, He exulted in the Holy Spirit, and He said: I confess to You, Father, Lord of heaven and earth. (Lk 10,21)

Ἐν αὐτῇ τῇ ὥρᾳ ἠγαλλιάσατο ἐν τῷ πνεύματι τῷ ἁγίῳ καὶ εἶπεν· ἐξομολογοῦμαί σοι, πάτερ, κύριε τοῦ οὐρανοῦ καὶ τῆς γῆς.

in ipsa hora exultavit Spiritu Sancto et dixit confiteor tibi Pater Domine caeli et terrae.