And we have known and believed the love that God hath to us. God is love.
1 John 4:16
We love Him, because He first loved us.
1 John 4:19
"Human love is usually reciprocal. 
That is, we love if and when we are loved in return.
The English word “love” in its various forms appears over 700 times in
the Bible.
The vast majority of those references do not attempt to
describe God’s love.
Evidently, we experience God’s love when we are saved and are under
obligation to show it as we “work out [our] own salvation with fear and
trembling” (Philippians 2:12)."
HMM III/DaysOfPraise