A man’s word is a little sound, that flies into the air, and soon vanishes; but the Word of God is greater than heaven and earth, yea, greater than death and hell, for it forms part of the power of God, and endures everlastingly
 Martin Luther, Table Talk (1566). copy citation

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Author Martin Luther
Source Table Talk
Topic death heaven
Date 1566
Language English
Reference
Note Translated by William Hazlitt
Weblink http://www.ntslibrary.com/PDF%20Books/Luther%20Table%20Talk.pdf

Context

“God, with one sole word, moulded the whole world. In Psalm xxxiii. it is said: “When he speaketh, it is done; when he commandeth, it standeth fast.” XLIV. We must make a great difference between God’s Word and the word of man. A man’s word is a little sound, that flies into the air, and soon vanishes; but the Word of God is greater than heaven and earth, yea, greater than death and hell, for it forms part of the power of God, and endures everlastingly; we should, therefore, diligently study God’s Word, and know and assuredly believe that God himself speaks unto us. This was what David saw and believed, who said: “God spake in his holiness, thereof I am glad.”” source