Ministers and teachers should give special attention to the cultivation of the voice. They should learn to speak, not in a nervous, hurried manner, but with a slow, distinct, clear utterance, preserving the music of the voice. CT 239.3
The Saviour's voice was as music to the ears of those who had been accustomed to the monotonous, spiritless preaching of the scribes and Pharisees. He spoke slowly and impressively, emphasizing those words to which He wished His hearers to give special heed. Old and young, ignorant and learned, could catch the full meaning of His words. This would have been impossible had He spoken in a hurried way and rushed sentence upon sentence without a pause. The people were very attentive to Him, and it was said of Him that He spoke not as the scribes and Pharisees, for His word was as of one who had authority.... CT 240.1
Christ's manner of teaching was beautiful and attractive, and it was ever characterized by simplicity. He unfolded the mysteries of the kingdom of heaven through the use of figures and symbols with which His hearers were familiar; and the common people heard Him gladly, for they could comprehend His words. There were no high-sounding words used, to understand which it was necessary to consult a dictionary. CT 240.2
Jesus illustrated the glories of the kingdom of God by the use of the experiences and occurrences of earth. In compassionate love and tenderness He cheered and comforted and instructed all who heard Him; for grace was poured upon His lips that He might convey to men in the most attractive way the treasures of truth. CT 240.3
This is the way in which He would have us present His truth to others. The power of speech is of great value, and the voice should be cultivated for the blessing of those with whom we come in contact. CT 240.4