Thayers Greek Lexicon on phobos :
2. reverence, respect (for authority, rank, dignity): Romans 13:7; 1 Peter 2:18; 1 Peter 3:16 (15); ἡ ἐν φόβῳ ἀναστροφή, behavior coupled with (cf. ἐν, I. 5 e.) reverence for one's husband, 1 Peter 3:2; φόβος with a genitive of the object: τοῦ κυρίου, Acts 9:31; 2 Corinthians 5:11; Χριστοῦ, Ephesians 5:21 (not Rec.); Θεοῦ, Romans 3:18; 2 Corinthians 7:1; (Ephesians 5:21 Rec.); Θεοῦ is omitted as suggested by the context, 1 Peter 1:17; (often in the O. T. יְהוָה יִרְאַת and אֱלֹהִים יִרְאַת). (Synonyms: see δειλία, δέος, at the end; cf. φοβέω.)