She sees that her trading is profitable, and her lamp does not go out at night.
NIV
She tastes and sees that her gain from work [with and for God] is good; her lamp goes not out, but it burns on continually through the night [of trouble, privation, or sorrow, warning away fear, doubt, and distrust].
AMP
She perceiveth that her merchandise is good: her candle goeth not out by night.
KJV