Principle One: The tongue has the power of life and death. (Proverbs 18:21)
Principle Two: Be kind and compassionate to one another, forgiving each other, just as in Christ, God forgave you. (Ephesians 4:32)
Principle Three: So in everything, do to others what you would have them do to you (this sums up the Law and the Prophets). (Luke 6:31)
Challenge #1: Pray together as often as you can.
Challenge #2: Spend 20 minutes a week developing spiritual intimacy.