We love Him because He first loved us.
1 John 4:19
There is no true love to Jesus in the heart but that which cometh from the Lord Jesus Himself. From this overflowing fountain of the infinite love of God, all our love to God must spring. This must ever be a great and certain truth, that we love Him for no other reason than because He first loved us. How great the wonder that such as we should ever have been brought to love Jesus at all! How marvelous that when we had rebelled against Him, He should, by a display of such amazing love, seek to draw us back. No! never should we have had a grain of love towards God unless it had been sown in us by the sweet seed of His love to us.
-C. H. Spurgeon