How is love as a noun different from love as a verb?

How is love as a noun different from love as a verb?

 What are some concrete differences in feeling love and love in action? 

Love, noun, an intense feeling of deep affection.

Love, verb, a concern for the good of another: such as :  the fatherly concern of God for humankind :  brotherly concern for others  a person's adoration of God

This week the prophet Ezekiel tells us we have been appointed as a watchman.

‘you shall warn them, the wicked.’

 You must speak out to dissuade the wicked from his ways,’ You can’t force him to remove himself from evil, but we are responsible ‘to warn him’. 

Paul goes further in the second reading:

‘Owe nothing to anyone, except to love one another;

In Mathew, Jesus gives a lesson in conflict resolution,

 ‘If your brother sins against you, go alone, just the two of you.  If he does not listen, try again. This time take witnesses with you. If still unsuccessful, tell the church, ‘there am I in the midst of them.’

 “Love is the overflow of joy in God that gladly meets the needs of others”. John Piper

 God is LOVE

So again, live LOVE as a noun or verb?