"Never preach a sermon without a text from the Bible, a text containing the theme which you can elaborate. The text is the best proof in support of your argument. A sermon without a text is an argument without a proof"

This quote by Isaac Mayer Wise is highlighting the significance of utilizing a text from the Bible when preaching a preaching. He is recommending that the text should consist of the theme of the preaching, which the preacher can then elaborate on. The text is viewed as the very best proof in assistance of the argument being made in the preaching. Without a text, the sermon is basically an argument without any evidence to back it up. This quote is encouraging preachers to use the Bible as a source of evidence and assistance for their preachings, as it is viewed as the most trustworthy source of evidence. Wise is stressing the importance of using the Bible as a source of evidence and assistance for sermons, as it is seen as the most reputable source of evidence. He is suggesting that preachers should use a text from the Bible that contains the style of the preaching, which they can then elaborate on. This quote is a pointer that a preaching without a text from the Bible is an argument with no evidence to back it up.