Hath widows (echei chēras). The “any believing woman” is one of the household-rulers of 1Ti 5:14. The “widows” here are the widows dependent on her and who are considered as candidates to be enrolled in the list.
Let her relieve them (eparkeitō autais). For this verb (imperative present active) see 1Ti 5:10.
Let not be burdened (mē bareisthō). Present passive imperative (in prohibition mē) of bareō, old verb (baros, burden), Pauline word (2Co 1:8).
That are widows indeed (tais ontōs chērais). Dative case with eparkesēi (first aorist active subjunctive with hina, final clause). See 1Ti 5:3 for this use of ontōs with chērais “the qualified and enrolled widows.” Cf. 1Ti 5:9.