Proverbs 5:18

Let thy fountain be blessed: and rejoice with the wife of thy youth.
— Proverbs 5:18, King James Version

In other translations

World English Bible (WEB)

Let your spring be blessed. Rejoice in the wife of your youth.

American Standard Version (ASV)

Let thy fountain be blessed; And rejoice in the wife of thy youth.

Young's Literal Translation (YLT)

Let thy fountain be blessed, And rejoice because of the wife of thy youth,