The purpose of our holy and righteous God was to save his church, but their sin could not go unpunished. It was, therefore, necessary that the punishment for that sin be transferred from those who deserved it but could not bear it, to one who did not deserve it but was able to bear it.

When sin lets us alone we may let sin alone.

The duties God requires of us are not in proportion to the strength we possess in ourselves. Rather, they are proportional to the resources available to us in Christ. We do not have the ability in ourselves to accomplish the least of God's tasks. This is the law of grace. When we recognize it is impossible for us to perform a duty in our own strength, we will discover the secret of its accomplishment.

Your state is not at all to be measured by the opposition that sin makes to you, but by the opposition you make to it.

Be killing sin or it will be killing you.

The vigour, and power, and comfort of our spiritual life depends on the mortification of the deeds of the flesh...The choicest believers, who are assuredly freed from the condemning power of sin, ought yet to make it their business all their days to mortify the indwelling power of sin...Do you mortify; do you make it your daily work; be always at it whilst you live; cease not a day from this work; be killing sin or it will be killing you.

It is not the distance of the earth from the sun, nor the sun's withdrawing itself, that makes a dark and gloomy day; but the interposition of clouds and vaporous exhalations. Neither is thy soul beyond the reach of the promise, nor does God withdraw Himself; but the vapours of thy carnal, unbelieving heart do cloud thee.