Matthew 5:14

Ye are the light of the world.

John 8:12

Then spake Jesus again to them, saying, I am the light of the world; he that followeth me, shall not walk in darkness, but shall have the light of life.

John 12:36

While ye have the light, believe in the light, that ye may become children of light. These things spake Jesus, and retiring concealed himself from them.

Philippians 2:15

That ye may be blameless and simple, the sons of God, unrebukable, in the midst of a crooked and perverse nation, among whom ye shine as lights in the world,

John 5:35

He was a burning and a shining light, and ye were willing for a season to rejoice in his light.

Romans 2:19-20

And art confident, that thyself art a guide of the blind, a light of them that are in darkness, An instructer of the ignorant,

2 Corinthians 6:14

Be not unequally yoked with unbelievers; for what fellowship hath righteousness with unrighteousness? or what communion hath light with darkness?

Ephesians 5:8-14

For ye were once darkness, but now ye are light in the Lord:

1 Thessalonians 5:5

Ye are all children of the light and children of the day: we are not children of the night, nor of darkness.

Revelation 1:20-1

The mystery of the stars which thou sawest in my right hand and of the seven golden candlesticks. The stars are angels of the churches: and the candlesticks are seven churches.

Revelation 21:14-27

And the walls of the city had twelve foundations, and upon them the twelve names of the twelve apostles of the Lamb.

Treasury of Scripture Knowledge

Summary

Ye are the light of the world. A city that is set on an hill cannot be hid.

Bible References

The light

John 5:35
He was a burning and a shining light, and ye were willing for a season to rejoice in his light.
John 12:36
While ye have the light, believe in the light, that ye may become children of light. These things spake Jesus, and retiring concealed himself from them.
Romans 2:19
And art confident, that thyself art a guide of the blind, a light of them that are in darkness, An instructer of the ignorant,
2 Corinthians 6:14
Be not unequally yoked with unbelievers; for what fellowship hath righteousness with unrighteousness? or what communion hath light with darkness?
Ephesians 5:8
For ye were once darkness, but now ye are light in the Lord:
Philippians 2:15
That ye may be blameless and simple, the sons of God, unrebukable, in the midst of a crooked and perverse nation, among whom ye shine as lights in the world,
1 Thessalonians 5:5
Ye are all children of the light and children of the day: we are not children of the night, nor of darkness.
Revelation 1:20
The mystery of the stars which thou sawest in my right hand and of the seven golden candlesticks. The stars are angels of the churches: and the candlesticks are seven churches.
Revelation 2:1
To the angel of the church at Ephesus write, These things saith he that holdeth the seven stars in his right-hand, that walketh in the midst of the seven golden candlesticks.

A city

Revelation 21:14
And the walls of the city had twelve foundations, and upon them the twelve names of the twelve apostles of the Lamb.