Jeremiah 8:5-7

Why then has this people turned away in perpetual backsliding? They hold fast to deceit; they refuse to return. I have paid attention and listened, but they have not spoken rightly; no man relents of his evil, saying, ‘What have I done?’ Everyone turns to his own course, like a horse plunging headlong into battle. Even the stork in the heavens knows her times, and the turtledove, swallow, and crane keep the time of their coming, but my people know not the rules of the LORD.