It is but a little sin!

(Brooks "Precious Remedies Against Satan's Devices")

"Lest Satan should get an advantage of us: for we
 are not ignorant of his devices." 2 Corinthians 2:11

"Ah!" says Satan, "It is but a little sin--a little pride,
a little worldliness, a little lust, etc. You may commit it
without any danger to your soul. It is but a little one;
you may commit it, and yet your soul shall live."

Consider, that there is great danger, yes, many times
most danger--in the smallest sins. "A little leaven leavens
the whole lump" (1 Cor. 5:6). If the serpent sneaks in his
head--he will draw in his whole body after him. Greater
sins do sooner startle the soul, and awaken and rouse
up the soul to repentance, than lesser sins do. Little sins
often slide into the soul, and breed, and work secretly and
indiscernibly in the soul, until they come to be so strong, as
to trample upon the soul, and to cut the throat of the soul.

Many are eternally killed and betrayed by the 'little sins',
as they call them, that are nourished in their own bosoms.

A little hole in the ship, sinks it.

A small breach in a dyke, carries away all before it.

A little stab at the heart, kills a man.

A little sin, without a great deal of mercy, will damn a man!