Jamieson, Fausset and Brown on 1 Timothy 5:3

3. Honour--by setting on the church roll, as fit objects of charitable sustenance (1Ti 5:9, 17, 18; Ac 6:1). So "honor" is used for support with necessaries (Mt 15:4, 6; Ac 28:10).

widows indeed--(1Ti 5:16). Those really desolate; not like those (1Ti 5:4) having children or relations answerable for their support, nor like those (in 1Ti 5:6) "who live in pleasure"; but such as, from their earthly desolation as to friends, are most likely to trust wholly in God, persevere in continual prayers, and carry out the religious duties assigned to Church widows (1Ti 5:5). Care for widows was transferred from the Jewish economy to the Christian (De 14:29; 16:11; 24:17, 19).