wrestling

Concise Bible Dictionary:

For the wrestling of Jacob with “a man” see JACOB. The conflict of the Christian is compared to wrestling: it is not with flesh and blood, but is against principalities, powers, and the rulers of the darkness of this age; against spiritual wickedness in the heavenlies. For this the whole armor of God is needed. All this phalanx of evil is against Christians, to prevent them from first keeping the place that God has given to them in grace, and then from fighting the Lord’s battles in the absence of the Lord Himself, both in the spread of the gospel in its heavenly character, the maintenance of the truth connected with a glorified Christ, and the perfecting of His saints (Eph. 6:11-1211Put on the whole armor of God, that ye may be able to stand against the wiles of the devil. 12For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places. (Ephesians 6:11‑12)).

Strong’s Dictionary of Hebrew Words:

Transliteration:
naphtuwl
Phonic:
naf-tool’
Meaning:
from 6617; properly, wrestled; but ued (in the plural) transitively, a struggle
KJV Usage:
wrestling