Matthew 4:16

the people who sat in darkness have seen a great light, and upon those who sat in the region and shade of death has light arisen.

Luke 1:79

to illuminate those sitting in darkness and the shade of death, to direct our feet in the way of peace.

1 Peter 2:9

But you are an elect race, a royal priesthood, a holy nation, a peculiar people, that you should declare the virtues of him who called you out of darkness into his glorious light;

Treasury of Scripture Knowledge

Summary

For thou wilt light my candle: the LORD my God will enlighten my darkness.

Bible References

My god

Matthew 4:16
the people who sat in darkness have seen a great light, and upon those who sat in the region and shade of death has light arisen.
Luke 1:79
to illuminate those sitting in darkness and the shade of death, to direct our feet in the way of peace.
1 Peter 2:9
But you are an elect race, a royal priesthood, a holy nation, a peculiar people, that you should declare the virtues of him who called you out of darkness into his glorious light;