Fulfil ye my joy, that ye be likeminded, having the same love, [being] of one accord, of one mind.
Note 3 at Php 2:2: Of course the answer to all the "ifs" in this verse is a resounding yes! There is consolation and comfort of love in Christ, there is an awesome fellowship with the Holy Spirit, and tremendous mercies have been bestowed on us through Christ. Therefore, Paul was using the marvelous blessings given unto us as motivation for us giving back to God. What Paul encouraged us to give to the Lord is a humble heart in our dealings with other believers, resulting in unity.
Note 4 at Php 2:2: Paul's joy was the unity of the body of Christ. Many Christians don't find any joy in seeing the members of Christ's body in unity. In fact, many people don't believe this is possible. However, it is possible, and the goal of every Christian should be to walk in love with the brethren.
Note 5 at Php 2:2: As pointed out in my note at 1Co 1:10, the unity Paul was speaking of is much deeper than what most of us today can believe or comprehend. He was speaking of being of one accord and one mind. This means we are to think the same way. How can that happen? Paul went on to explain that it happens through humility. Pride is at the root of all division (Pr 13:10). Until pride is dealt with, there will be no true unity. As long as pride is prevalent, division will be too.