'World' in the Bible

For our glorifying is this, the testimony of our conscience, that in holiness and sincerity of God, not in fleshly wisdom but in the grace of God, we behaved ourselves in the world, and more abundantly to you-ward.

in whom the god of this world hath blinded the minds of the unbelieving, that the light of the gospel of the glory of Christ, who is the image of God, should not dawn upon them .

to wit, that God was in Christ reconciling the world unto himself, not reckoning unto them their trespasses, and having committed unto us the word of reconciliation.

For godly sorrow worketh repentance unto salvation, a repentance which bringeth no regret: but the sorrow of the world worketh death.