In his book, The Four Loves, C.S. Lewis writes, "Agape love is the highest level of love known to humanity, a selfless love, a love that is passionately committed to the well-being of others." It's the highest level of love because it's the one that reflects God's gift to mankind through His Son Jesus Christ.
"For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life." (John 3:16)
There's a key ingredient in agape love which is often forgotten by mankind, but never forgotten by God.
Without grace love becomes a barter system where we give as much as we're given and forgive only when we're forgiven.
When love is seasoned with grace it reaches down to people who deserve it the least because they need it the most. It serves the other on the good days and bad.
This goes against our modern way of thinking which says that love is 50/50 and that it has to go both ways. That way of thinking isn't love for another, it's love that's looking out for itself.
One of the best and most beautiful examples of agape love is illustrated through the devotion of parents with a newborn child. They come into this world fully reliant on us, not able to reciprocate in any way, and needing to be cared for in every way.
It’s a one-way street that’s more fulfilling than any other kind of love because it reflects the perfect love of God.
"But God shows his love for us in that while we were still sinners, Christ died for us." (Romans 5:8)
God's plan for marriage is perfect in every way. He designed both men and women to love each other more than we love ourselves.