“I tell you, her sins—and they are many—have been forgiven, so she has shown me much love. But a person who is forgiven little shows only little love.” (Luke 7:47 NLT)
If we stop to remember the magnitude of God's forgiveness toward us it should only heighten our love for Him. The problem is that too many people don't think of themselves as being all that bad before they met Christ. However, loving God more deeply will involve seeing Him more fully AND seeing ourselves more honestly. If you think of yourself as one of the "good ones" God saved...then that explains the reason you show Him only a "little love."