STRONGS G16:
ἀγαθοποιΐᾳ [WH (see Ι, ι)], -ας, ἡ, a course of right action, well-doing: ἐν ἀγαθοποιΐᾳ, 1 Peter 4:19 equivalent to ἀγαθοποιοῦντες acting uprightly [cf. xii. Patr. Jos. § 18]; if we read here with L Tr marginal reading ἐν ἀγαθοποιΐαις we must understand it of single acts of rectitude [cf. Winers Grammar, § 27, 3; Buttmann, § 123, 2). (In ecclesiastical writings ἀγαθοποιΐᾳ denotes beneficence.)
