John Wesley on Affections

If we set our affection on things of the earth, on any person or thing under the sun; if we desire anything but God, and what tends to God; if we seek happiness in any creature; the jealous God will surely contend with us, for he can admit of no rival. And if we will not hear his warning voice, and return to him with our whole soul, we continue to grieve him with our idols, and running after other gods, we shall soon be cold, barren, and dry; and the god of this world will blind and darken our hearts.

Thanks to Matt Fearey for sending me that one.