Strong’s Definitions
ἐπιστηρίζω epistērízō, ep-ee-stay-rid'-zo; from G1909 and G4741; to support further, i.e. reestablish:—confirm,
strengthen.
KJV Translation Count — Total: 4x
The KJV translates Strong's G1991 in the following manner: confirm (3x), strengthen (1x).