There is tremendous power in the little monosyllable "No" when it is spoken resolutely and courageously. It has often been like a giant rock by the sea as it has encountered and hurled back the mighty waves of temptation. It is a majestic power the power to say "No" to everything that is not right. But it is just as important to learn to say "Yes." There come to us offers and solicitations we must not reject, and opportunities we must not thrust away. Life is not all resistance and defence. Whatever is wrong we must meet with a firm, strong uncompromising "No;" but whatever is right we should welcome into our life with a hearty, cheerful "Yes."
Matthew 5:37: But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil. (KJV)