Proverbs 31:18

She perceiveth that her merchandise is profitable: Her lamp goeth not out by night.

Genesis 31:40

Thus I was; in the day the drought consumed me, and the frost by night; and my sleep fled from mine eyes.

Psalm 127:2

It is vain for you to rise up early, To take rest late, To eat the bread of toil; For'so he giveth unto his beloved sleep.

Matthew 25:3-10

For the foolish, when they took their lamps, took no oil with them:

1 Thessalonians 2:9

For ye remember, brethren, our labor and travail: working night and day, that we might not burden any of you, we preached unto you the gospel of God.

2 Thessalonians 3:7-9

For yourselves know how ye ought to imitate us: for we behaved not ourselves disorderly among you;

Treasury of Scripture Knowledge

Summary

She perceiveth that her merchandise is good: her candle goeth not out by night.

Bible References

Her candle

Genesis 31:40
Thus I was; in the day the drought consumed me, and the frost by night; and my sleep fled from mine eyes.
Psalm 127:2
It is vain for you to rise up early, To take rest late, To eat the bread of toil; For'so he giveth unto his beloved sleep.
Matthew 25:3
For the foolish, when they took their lamps, took no oil with them:
1 Thessalonians 2:9
For ye remember, brethren, our labor and travail: working night and day, that we might not burden any of you, we preached unto you the gospel of God.
2 Thessalonians 3:7
For yourselves know how ye ought to imitate us: for we behaved not ourselves disorderly among you;

American Standard Version Public Domain