Therefore, if you have any encouragement from being united with Christ, if any comfort from his love, if any common sharing in the Spirit, if any tenderness and compassion.
Philippians 2:1

What does Paul present as being the proper attitude of Christian people toward one another?
Common encouragement in Christ, a common comforting peace because of their mutual love, brotherly and sisterly support because they all share the same Holy Spirit of God, tender affection, and empathy towards each other.