I've always loved the summary phrase for Matthew 22:37-39, "Love God. Love People." I heard it first as a theme through Student Life and then read it later in Purpose Driven Life. We've adopted it as our mission statement at Grace Christian Fellowship. Studying 1 John 4 recently I've read a lot about God's love and ours. "Love" is found 32 times in just 21 verses. What jumped out at me and is now a tag to this statement: Love God, love people follows God loved us first.
"We love because he first loved us." 1 John 4:19 NIV