'Victory' in the Bible

I am coming quickly: cling to that which you already possess, so that your wreath of victory be not taken away from you.

But they have gained the victory over him because of the blood of the Lamb and of the testimony which they have borne, and because they held their lives cheap and did not shrink even from death.

And I saw what seemed to be a sea of glass mingled with fire, and those who had gained the victory over the Wild Beast and over his statue and the number of his name, standing by the sea of glass and having harps which belonged to God.

They will make war upon the Lamb, and the Lamb will triumph over them; for He is Lord of lords and King of kings. And those who accompany Him--called, as they are, and chosen, and faithful--shall share in the victory."