“The love of God is like himself – equal, constant, not capable of augmentation or diminution; our love is like ourselves – unequal, increasing, waning, growing, declining. His, like the sun, always the same in its light, though a cloud may sometimes interpose; ours, as the moon, has its enlargements and straightenings.”

“Love is like the moon: if it's not waxing, it's waning, but it's the same as the last time, always the same.”

“When we realize a constant enemy of the soul abides within us, what diligence and watchfulness we should have! How woeful is the sloth and negligence then of so many who live blind and asleep to this reality of sin. There is an exceeding efficacy nad power in the indwelling sin of believers, for it constantly inclines itself towards evil. We need to be awake, then, if our hearts would know the ways of God. Our enemy is not only upon us, as it was with Samson, but it is also in us.”

“There is no broader way to apostasy than to reject God’s sovereignty in all things concerning the revelation of himself and our obedience...”

“Sin does not only still abide in us, but is still acting, still laboring to bring forth the deeds of the flesh. When sin lets us alone we may let sin alone; but as sin is never less quiet than when it seems to be the most quiet, and its waters are for the most part deep when they are still, so ought our contrivances against it be vigorous at all times and in all conditions, even where there is least suspicion.”

“Sin also carries on its war by entangling the affections and drawing them into an alliance against the mind. Grace may be enthroned in the mind, but if sin controls the affections, it has seized a fort from which it will continually assault the soul. Hence, as we shall see, mortification is chiefly directed to take place upon the affections.”

“To suppose that whatever God requireth of us that we have power of ourselves to do, is to make the cross and grace of Jesus Christ of none effect.”