Love is not a feeling. The noun form of the word would not exist without the verb form, and a verb connotes action. Love without action is empty rhetoric. Love in word only is actually hatred, and a lie. There is no truth in it unless it is manifested in selfless action toward its object.
1 John 3:18-20 Dear children, let us not love with words or tongue but with actions and in truth. This then is how we know that we belong to the truth, and how we set our hearts at rest in his presence whenever our hearts condemn us. For God is greater than our hearts, and he knows everything.