Strong’s Greek
G2308 — thelesis
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
θέλησις
thelesis — pronounced thel'-ay-sis
from 2309; determination (properly, the act), i.e. option:--will. see GREEK for 2309
1 occurrence in the KJV.
Hebrews 2:4
God also bearing them witness, both with signs and wonders, and with divers miracles, and gifts of the Holy Ghost, according to his own will?