"Those, however, who set the time, place and measure, tempt God, and believe not that they are heard or that they have obtained what they asked; therefore, they also receive nothing."
Sermons of Martin Luther, 8 vols., ed., John Nicholas Lenker, Grand Rapids: Baker Book House, 1983, III, p. 172. John 16:23‑30.
"In like manner, St. Paul says that God's ability is thus proved, in that He does exceeding abundantly above and better than we ask or think. Ephesians 3:20. Therefore, we should know we are too finite to be able to name, picture or designate the time, place, way, measure and other circumstances for that which we ask of God. Let us leave that entirely to Him, and immovably and steadfastly believe that He will hear us." Sermons of Martin Luther, III, p. 179f.
"If the world were willing to take advice from a simple, plain man‑‑that is, our Lord God (who, after all, has some experience too and knows how to rule)‑‑the best advice would be that in his office and sphere of jurisdiction everybody simply direct his thoughts and plans to carrying out honestly and doing in good faith what has been commanded him and that, whatever he does, he depend not on his own plans and thoughts but commit the care to God. Such a man would certainly find out in the end who does and accomplishes more, he who trusts God or he who would bring success to his cause through his own wisdom and thoughts or his own power and strength."
What Luther Says, III, p. 1151. Luke 5:1‑11.
"For people come to the preaching of the Gospel as if they were honest pupils. But under this guise they are seeking nothing else but a full belly and their own benefit. They consider the Gospel an economic teaching, designed to teach one to eat and drink in plenty."
What Luther Says, I, p. 304. John 6:26‑27.
"Must Lutheranism be shorn of its glory to adapt it to our times or our land? No!"
Charles P. Krauth, The Conservative Reformation and Its Theology, Philadelphia: The United Lutheran Publication House, 1871, p. 208.
"He who holds fast to the Word alone, trusts and abides in it, does not doubt that what the Word says will come to pass; he who does not dictate aim or time or means and ways, but resigns all freely to God's will and pleasure as to when, how, where, and by whom He will fulfill His Word; he, I say, has a true living faith which does not nor cannot tempt God."
Sermons of Martin Luther, I, p. 367.