We choose to speak of Bible things by Bible words, because we are always suspicious that if the word is not in the Bible, the idea which it represents is not there; and always confident that the things taught by God are better taught in the words, and under the names which the Holy Spirit has chosen and appropriated, than in the words which man's wisdom teaches.
There is nothing more essential to the union of the disciples of Christ than purity of speech. So long as the earth was of one speech, the human family was united. Had they been then of a pure speech as well as of one speech, they would not have been separated. God, in his just indignation, dispersed them; and before he scattered them, he divided their language. One of his Prophets, who live in a degenerate age, who prophesied against the corruptions of his day, when he spoke of better times, of an age of union and communion, was commanded to say in the name of the Lord, "Then will I return to the people a pure language, that they may all call upon the name of the Lord, to serve him with one consent." Purity of speech is here declared to be prerequisite to serving the Lord with one consent.
"The words of the Lord are pure words." To have a pure speech we must choose the language of Canaan, and abandon that of Ashdod. And if we would be one mind, we must "speak the same thing." This was Paul's scheme of union, and no man can suggest a better.
It requires but little reflection to discover that the fiercest disputes about religion, are about what the Bible does not say, rather than about what it does say – about words and phrases coined in the mint of speculative theology. – Alexander Campbell, Millennial Harbinger, Vol. 6, Pg. 125-126