John Calvin's Bible Commentary
Jeremiah 42:7
Here Jeremiah declares what answer he received from God; and he gave it in his name to the leaders of the forces and to the whole people. The answer was, that they were to continue in the land; for this would be for their good. We shall hereafter see, that they had falsely asked counsel of God, whom they had resolved not to obey, as it has been already stated. But the Prophet shews again more clearly how perversely they acted after God had commanded them to remain quiet, and especially not to proceed to Egypt.
Now he says, that at the tenth day God answered him. He might have done so immediately, but he deferred, that the prophecy might have more weight. Had the Prophet been asked any question respecting the common rule of life, as a faithful expounder of the Law, he might have explained to them what their duty was; but as he had been asked on a special subject, he could not have immediately answered them. And God, as I have said, kept them for a time in suspense; not only that the Prophet’s answer might be made without ostentation, but also that. the people might embrace as coming from God what the Prophet would say; for his doctrine could not have been doubted, for he did not instantly bring forth what had arisen in his own head, but prayerfully waited to know what pleased God, and at length announced his commands. We now then perceive the cause of delay, why God did not immediately convey to his servant the answer required.
Let us at the same time learn from this passage, that if God does not immediately extricate us from all perplexity and doubt, we ought patiently to wait, according to the direction of Paul, who, when speaking of doctrine, admonished the faithful to remain contented until what they knew not should be revealed to them. (Philippians 3:15.) Much more should we do so, when we ask counsel as to any particular thing. When God does not immediately make known to us what we ask, we ought, as I have already said, to wait with calm and resigned minds for the time and the season when it shall be made known to us.