Charles H. Spurgeon on Psalms 35:6

"Let their way be dark and slippery." A horrible way! Darkness alone who feareth not? A slippery way alone who avoids not? In a dark and slippery way, how shalt thou go? where set foot? These two ills are the great punishments of men-darkness, ignorance; a slippery way, luxury. "Let their way be darkness and slipping; and let the angel of the Lord persecute them," that they be not able to stand. For anyone in a dark and slippery way, when he seeth that if he move his foot he will fall, and there is no light before his feet, haply resolving to wait until light come; but here is the angel of the Lord persecuting them. —Augustine.