'Instead' in the Bible

Does any one of you, when he has a complaint (civil dispute) with another [believer], dare to go to law before unrighteous men (non-believers) instead of [placing the issue] before the saints (God’s people)?

On the contrary, it is you who wrong and defraud, and you do this even to your brothers and sisters.

But quite the contrary, the parts of the body that seem to be weaker are [absolutely] necessary;