“fulfill my joy by being like-minded, having the same love, being of one accord, of one mind.”
This is the last of the fourfold result of Paul’s fourfold appeal to unity (v1). We come to the last result.
“of one mind.”
Literally, this means to think one thing. Christians are to “think the one thing” in harmony with one another.
This does not mean to think the same content from a human point of view. It does not mean that everyone is supposed to hold the same opinion. Nor does it mean that everyone is to interpret everything the same way.
This means that we are to think like Christ thinks. We have the mind of Christ: “For who has known the mind of the Lord that he may instruct him? But we have the mind of Christ” (I Co 2:16).
Note other passages on this subject,
“Be of the same mind toward one another. Do not set your mind on high things, but associate with the humble. Do not be wise in your own opinion” (Ro 12:16).
“Now may the God of patience and comfort grant you to be like-minded toward one another” (Ro 15:5).
The content of our thinking should be the same as the Lord Jesus because we have His mind.
Is the reason you do not have a good relationship with someone that you do not think about the Word of God sufficiently?