1 John 4:10
"In this is love, not that we have loved God but that he loved us and sent his Son to be the propitiation for our sins."
How do I know this to be true?
I know this about God because He sent His Son into the world to testify to the truth so that I and anyone who has spiritual discernment can understand His word and know His love.
Without that spiritual appraisal, the cross remains either a tragic story or a religious symbol. With it, the cross is seen for what it is; the decisive demonstration that God loved us first, while we were still sinners, and provided the only sufficient covering for our guilt.
Love is from God. It does not originate in us. And that means the one who truly loves has already been born of God and therefore knows God.
That's not my opinion or interpretation, just a few verses earlier John unambiguously stated:
1 John 4:7
"Beloved, let us love one another, for love is from God, and whoever loves has been born of God and knows God."
Notice the order John keeps.
So the love that proves we have been born of God is not a vague affection or moral effort. It is the love that has first been defined by the cross.
That's right, the cross is love.
And the Son of Man came out of love for that truth. The Father sent His Son to be the propitiation for our sins. That is how we know what love actually is. You know this is true because the Son came into the world to bear witness to the truth, and the Spirit gives spiritual discernment so that the testimony is received rather than remaining a closed book. Without that work of the Spirit, the cross is only history or symbol. With it, the cross is recognized as the place where God loved us first and covered our guilt.
There is a saying that I understand fully, "the fruit proves the root" because I know plants. Probably better than people I know plants. And it is absolutely true that whatever is going on below the ground is immediately and certainly impacting what's going on above the ground.
This principle is not poetic; it is causal. And we should use caution in the context of spiritual matters. God is first cause. Like that root, nothing above ground happens until something happens below ground.
God is the initiator and man is the respondent. Anyone who teaches man initiates is false. We need to praise, worship, fast, pray, love one another, so that God can respond. This teaching makes man the initiator. And this thinking gets it all backwards.
Friends, you can't love God and thereby the people of God unless God first loves you. You're not predisposed to love anyone in fact. Every child is born a narcissist. They all are completely self-absorbed. And if you've had kids you know I'm right.
But of course they develop a love for those who love on them. And isn't that what John is saying here? You cannot love God, or the people of God, unless God has first loved you. The direction of the love is irreversible. He initiates; we respond. Any other order is false to the text and false to the human condition. A child does not arrive already oriented toward self-giving love. Left to itself, the child is self-absorbed. Love for others develops as the child is first loved, cared for, and known. The capacity to love is awakened and shaped by having first received love.
The natural posture is self-regard. What changes us is that God first loved us and demonstrated that love by sending His Son as the propitiation for our sins. The Spirit then opens our eyes to that reality. Only then does true love for God and for the brothers begin to appear.
The fruit proves the root.
The root is not our decision to start loving. The root is God’s prior, costly love toward us while we were still sinners. Everything else grows from that.
What is that fruit?
"Beloved, if God so loved us, we also ought to love one another." (1 John 4:11)
That is the commandment that follows. The fruit that proves the root is that we now love the brothers and sisters.