iactator
From LSJ
ὁ λόγος τοῦ Θεοῦ οὐ δέδεται → the word of God will not be dishonoured, the word of God will not be dishonored
Latin > English (Lewis & Short)
jactātor: ōris, m. id.,
I one who makes an ostentatious display of himself, a boaster, braggart: rerum a se gestarum, Quint. 11, 1, 17: civilitatis, Suet. Claud. 35; Stat. Th. 6, 837; Gell. 18, 4, 1.—Poet., with inf.: ille sub hiberno somnos educere caelo Jactator, he boasts, Sil. 11, 403.