Our loving care will be heardin our voices. Emotions affects the voice. Dull monotonous voices are actually an indicator of a dull monotonous heart. regular tears are actually an indicator that we care. John Stott said “What is needed today is the same synthesis of reason and emotion, exposition and exultation, as was achieved by Paul.” Paul’s emotions run through everyline he wrote: it is what Dr Lloyd Jones called “logic on fire”.
From the book "Preach the Word!: The Call and Challenge of Preaching Today"