Jeremiah 8:7

Yea, the stork knoweth her appointed times Of going and returning; the turtle and the crane, &c., the time of their coming The proper season for changing their climate. Taught by natural instinct, they change their quarters as the temper of the air alters, removing to a warmer climate when the winter approaches, and returning when the spring comes on; but my people know not the judgment of the Lord Understand neither their duty nor their happiness; they apprehend not the meaning either of God's mercies or judgments, nor how to accommodate themselves to either so as to answer God's intention therein. They know not how to improve the seasons of grace which God affords them when he sends them his prophets; nor how to make use of the rebukes they are under when his voice cries in the city. They discern not the signs of the times, (Matthew 16:3,) nor are aware how God is dealing with them. They know not the law which God has prescribed them, though it be written both in their hearts and in their books.