Notes

1) disagreement : Matthew 18:15-17 says “If your brother sins, go and show him his fault in private; if he listens to you, you have won your brother. But if he does not listen to you, take one or two more with you, so that by the mouth of two or three witnesses every fact may be confirmed. If he refuses to listen to them, tell it to the church; and if he refuses to listen even to the church, let him be to you as a Gentile and a tax collector. And , Mark 9:33-34 says They came to Capernaum; and when He was in the house, He began to question them, “What were you discussing on the way?” But they kept silent, for on the way they had discussed with one another which of them was the greatest.
2) agreement: Amos 3:3 says "Do two men walk together unless they have made an appointment? Matthew 18:19 says“Again I say to you, that if two of you agree on earth about anything that they may ask, it shall be done for them by My Father who is in heaven. 2 Corinthians 6:16 says Or what agreement has the temple of God with idols? For we are the temple of the living God; just as God said, “I will dwell in them and walk among them; And I will be their God, and they shall be My people.