Having damnation, because they have cast off their first faith.
Having - Having to bear (Galatians 5:10) judgment from God (cf. 1 Timothy 3:6), weighing like a load on them; namely,
Because - rather, that (Ellicott).
Cast off their first faith - namely, pledged to Christ and the Church. There could be no hardship at 60 or upwards in not marrying again (end of 1 Timothy 5:9), for the sake of serving better the cause of Christ as presbyteresses; though, to ordinary widows, no barrier existed against re-marriage (1 Corinthians 7:39). This is distinct from Rome's unnatural vows of celibacy in young marriageable women. The widow-presbyteresses engaged to remain single, not as though single were holier than married life (Rome's teaching), but because the interests of Christ made it desirable (note, 1 Timothy 3:2). They had pledged "their first faith" to His service as presbyteress widows: they now wish to transfer their faith to a husband (cf. 1 Corinthians 7:32; 1 Corinthians 7:34).