Faith (pistis). Not faith of surrender, saving faith, but wonder-working faith like that in 1Co 13:2 (Mat 17:20; Mat 21:21). Note here en tōi autōi pneumati (in the same Spirit) in contrast with dia and kata in 1Co 12:8.
Gifts of healings (charismata iamatōn). Iama, old word from iaomai, common in lxx, in N.T. only in this chapter. It means acts of healing as in Act 4:30 (cf. Jam 5:14) and Luk 7:21 (of Jesus). Note en here as just before.