Matthew 25:3-10

The foolish took their lamps and took no oil with them;

1 Thessalonians 2:9

For you remember, brothers, our labor and weariness; that working night and day not to be burdensome to any one of you, we preached to you the gospel of God.

2 Thessalonians 3:7-9

For you know yourselves how you ought to follow us, for we walked not 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

Matthew 25:3
The foolish took their lamps and took no oil with them;
1 Thessalonians 2:9
For you remember, brothers, our labor and weariness; that working night and day not to be burdensome to any one of you, we preached to you the gospel of God.
2 Thessalonians 3:7
For you know yourselves how you ought to follow us, for we walked not disorderly among you,