Lot is the person who of all others might have been expected to be forward in his expressions of gratitude to Abram--not a word of his is recorded. Ashamed he cannot but have been, for if Abram said not a word of reproach, there would be plenty of Lot's old friends among Abram's men who could not lose so good an opportunity of twitting him about the good choice he had made. And considering how humiliating it would have been for him to go back with Abram and abandon the district of his adoption, we can scarcely wonder that he should have gone quietly back to Sodom, well as he must by this time have known the nature of the risks he ran there. For, after all, this warning was not very loud. The same thing, or a similar thing, might have happened had he remained with Abram. The warning was unobtrusive as the warnings in life mostly are; audible to the ear that has been accustomed to listen to the still small voice of conscience, inaudible to the ear that is trained to hear quite other voices. God does not set angels and flaming swords in every man's path. The little whisper that no one hears but ourselves only and that says quite quietly that we are continuing in a wrong course, is as certain an indication that we are in danger, as if God were to proclaim our case from heaven with thunder or the voice of an archangel. And when a man has persistently refused to listen to conscience it ceases to speak, and he loses the power to discern between good and evil and is left wholly without a guide. He may be running straight to destruction and he does not know it. You cannot live under two principles of action, regard to worldly interest and regard to conscience. You can train yourself to great acuteness in perceiving and following out what is for your worldly advantage, or you can train yourself to great acuteness of conscience; but you must make your choice, for in proportion as you gain sensitiveness in the one direction you lose it in the other. If your eye is _single_ your whole body is full of light; but if the light that is in thee be darkness, how great is that darkness!