The Pilgrim's Progress by John Bunyan

Then Christian sang:
"By-ends and silver Demas both agree;
One calls, the other runs, that he may be
A sharer in his lucre; so these do
Take up in this world, and no further go."
Now I saw that, just on the other side of this plain, the Pilgrims came to
a place where an old monument stood near the side of the highway.
Upon seeing it, they were both concerned because of the strangeness of
its form — for it seemed to them as if it had been a woman transformed
into the shape of a pillar.
They therefore stood looking upon it — and for a time, could not tell
what they should make of it. At last Hopeful spotted an inscription in
an unusual dialect written above the monument; but being no scholar,
he called to Christian (who was more learned) to see if he could
understand the meaning. So Christian came, and after examining the
letters — he found its meaning to be: "Remember Lot's wife!"
After reading it to Hopeful — they both concluded that this was the
pillar of salt which Lot's wife had been turned into, for her looking back
with a covetous heart — when she was fleeing Sodom for safety. This
sudden and amazing sight prompted the following discourse.
CHRISTIAN: "Ah, my brother — this is a timely warning! It came
providentially to us after Demas' invitation to come over to view the Hill
Lucre. Had we gone as he desired, and as you were first inclined to do,
my brother — we ourselves would probably have been made like this
woman — a spectacle to behold, for those who come after.”
Page
161 of 253