'Agreement' in the Bible

Reach agreement quickly with your accuser while on the way to court, or he may hand you over to the judge, and the judge hand you over to the warden, and you will be thrown into prison.

Do not deprive each other, except by mutual agreement for a specified time, so that you may devote yourselves to prayer. Then resume your relationship, so that Satan may not tempt you because of your lack of self-control.

And what agreement does Christ have with Beliar? Or what does a believer share in common with an unbeliever?

And what mutual agreement does the temple of God have with idols? For we are the temple of the living God, just as God said, "I will live in them and will walk among them, and I will be their God, and they will be my people."

the Spirit and the water and the blood, and these three are in agreement.