"Love MUST be sincere."
Think about this...
Most of us have learned how to pretend to love others - how to speak kindly, avoid hurting their feelings, and appear to take an interest in them. We may even be skilled in pretending to feel moved with compassion when we hear of others' needs, or to become indignant when we learn of injustice.
But God has called us to real and sincere love that goes FAR beyond pretense and politeness. Sincere love requires concentration and effort. It demands our time, money, personal involvement, and many times self-sacrifice.
Some of our relationships are easy to love sincerely, others require us to love as God loves us. . .unconditionally with sincere intentions!