Sin which men account small brings God's great wrath on men.

The giving way to a less sin makes way for the committing of a greater.

God is a just as He is merciful.

God has ends and designs in giving evil men outward mercies and present rest from sorrows and sufferings that cause saints to sigh.

God will call evil men to a strict account for all the outward good that they have enjoyed.

Ah! how many Judases have we in these days, that kiss Christ, and yet betray Christ; that in their words profess him, but in their works deny him; that bow their knee to him, and yet in their hearts despise him; that call him Jesus, and yet will not obey him for their Lord.

The snow covers many a dunghill, so doth prosperity many a rotten heart.

Ah, souls, you can easily sin as the saints—but can you repent with the saints? Many can sin with David and Peter, that cannot repent with David and Peter—and so must perish forever!

Sins against God's mercy will bring the greatest and sorest judgments upon men's heads and hearts. Mercy is God's Alpha, justice is His Omega.

When Satan attempts to draw you to sin by presenting God as a God all made up of mercy, oh then reply, that though God's general mercy extend to all the works of his hand, yet his special mercy is confined to those who are divinely qualified, to those who love him and keep his commandments, to those who trust in him, that by hope hang upon him, and who fear him; and that you must be such a one here, or else you can never be happy hereafter; you must partake of his special mercy, or else eternally perish in everlasting misery, notwithstanding God's general mercy.

There is nothing in the world that renders a man more unlike to a saint, and more like to Satan - than to argue from God's mercy to sinful liberty; from divine goodness to licentiousness.

Quotes from Thomas Brooks (1608-1680), Precious Remedies Against Satan's Devices

Sourced from: http://en.wikiquote.org/wiki/Thomas_Brooks

Should we live a life of sin so we can receive more grace? God forbid. - Adaptation from Romans 6:1-2