aspen,
When I married my youngest son and his wife, he said to me, 'Dad, please do not say anything Christian in this wedding ceremony'. He and his wife-to-be wanted me, a marriage celebrant, to marry them but he wanted nothing to do with God and Christ in the ceremony. This was very sad for my wife and me as all 3 children have been raised in an evangelical Christian home.
Since that wedding and the birth of their first child, we have had an exceptionally loving relationship with my son, his wife and grand-daughter. They love us deeply. They do not have the slightest desire to love God. They choose to love us as parents, in-laws and grand-parents.
Therefore, I reject your statement, 'When I see God's love in others and nature, I recognize it as inspired. It really can have no other source, but God'. My son's love for us is not from God. It is a choice he has made because we are his loving parents. He is responding to our love, but also initiating his own love towards us even today - even though he now loves thousands of km away from us.
Oz