Those who sail the sea tell of its dangers, and we marvel at what we hear: Good News Translation says this well. Contemporary English Version is also good with:

• And when sailors tell stories
of danger at sea,
we are amazed.

Quoted with permission from Bullard, Roger A. and Hatton, Howard A. A Handbook on Sirach. (UBS Helps for Translators). New York: UBS, 2008. For this and other handbooks for translators see here.