'Agree' in the Bible

Again, truly I say to you that if two of you agree on earth about any matter that they ask, it will be done for them from my Father [who is] in heaven.

And with this the words of the prophets agree, just as it is written:

Take these [men] [and] purify yourself along with them and {pay their expenses} so that they can shave [their] heads, and everyone will know that [the things] which they had been informed about you are nothing, but you yourself also agree with observing the law.

You therefore do not be persuaded by them, because more [than] forty men of {their number} are lying in wait [for] him, who have bound themselves under a curse neither to eat nor to drink until they have done away with him. And now they are ready, waiting for {you to agree}."

But if what I do not want [to do], this I do, I agree with the law that [it is] good.

For I joyfully agree with the law of God in my inner person,