'Maintain' in the Bible

since they exhibit proof that a knowledge of the conduct which the Law requires is engraven on their hearts, while their consciences also bear witness to the Law, and their thoughts, as if in mutual discussion, accuse them or perhaps maintain their innocence--

For we maintain that it is as the result of faith that a man is held to be righteous, apart from actions done in obedience to Law.

and no longer lend your faculties as unrighteous weapons for Sin to use. On the contrary surrender your very selves to God as living men who have risen from the dead, and surrender your several faculties to God, to be used as weapons to maintain the right.