be of doubtful mind

Strong’s Dictionary of Greek Words:

Greek:
μετεωρίζω
Transliteration:
meteorizo
Phonic:
met-eh-o-rid’-zo
Meaning:
from a compound of 3326 and a collateral form of 142 or perhaps rather 109 (compare "meteor"); to raise in mid-air, i.e. (figuratively) suspend (passively, fluctuate or be anxious)
KJV Usage:
be of doubtful mind