Love is the gold standard of Christianity against which everything else is measured. Love is not a feeling. Both its scope and its size can be measured.
With regard to the size of his love, Jesus laid down his life for us (John 10:15-18) (John 15:13). He made the payment not from his unlimited divine resources. He made the payment from his limited human resources. He paid them all for us (1 Corinthians 7:23-24). He kept not a penny for himself. He has never paid more for anything else (John 15:13). The exorbitant size of the payment is irrefutable evidence of the exorbitant size of his love for us.