"Ministers and teachers should discipline themselves to articulate clearly and distinctly, allowing the full sound to every word. Those who talk rapidly, from the throat, jumbling the words together, and raising the voice to an unnaturally high pitch, soon become hoarse, and the words spoken lose half the force which they would have if spoken slowly, distinctly, and not so loud. They sympathies of the hearers are awakened for the speaker; for they know that he is doing violence to himself, and they fear that he will break down at any moment. It is no evidence that a man has zeal for God because he works himself up into a frenzy of excitement and gesticulation. “Bodily exercise,” says the apostle, “profiteth little.” [ 1 Timothy 4:8 .] GW 91.1"
"For bodily exercise profiteth little: but godliness is profitable unto all things, having promise of the life that now is, and of that which is to come."
Ellen White directly references 1 Timothy 4:8 in this passage.