where sailors cling...

O risen Christ, shine forth and be
A blazing warning by the sea -
A signal where the sailors cling
To life through reefs of suffering,
And need the blast of light and bell:
Beware, what here beneath may dwell.
Beware of subtle, shrewd assaults,
A half-truth can be wholly false.
Beware of wisdom made in schools
And proverbs in the mouth of fools.
Beware of claims that rise too tall:
"The upright stand and wicked fall."
Beware the thought that all is vain;
In time God's wisdom will be plain.

~~John Piper