Paul's main theme in his letters is to stand firm in the Lord. To stand firm is to remain faithful: to God, in becoming more and more like Jesus, and having Christ be known. In this sermon, we see Paul call out two believers, Euodia and Syntyche, who were fighting. God calls His people to be one in unity, and Satan distracts us from this calling by encouraging conflict between believers. To stand firm, we must resolve conflict with others in love by longing to be with others and be willing to work together thru conflict.