'Integrity' in the Bible

And the LORD said unto Satan, Hast thou considered my servant Job, that there is none like him in the earth, a perfect and an upright man, one that feareth God, and escheweth evil? and still he holdeth fast his integrity, although thou movedst me against him, to destroy him without cause.

Then said his wife unto him, Dost thou still retain thine integrity? curse God, and die.

God forbid that I should justify you: till I die I will not remove mine integrity from me.

Let me be weighed in an even balance, that God may know mine integrity.