Matthew 5:14

You are the light of the world. A city that is built upon a hill cannot be hidden.

John 8:12

Then Jesus again addressed them and said, "I am the light of the world. Whoever continues to follow me need never walk in darkness, but he will enjoy the light that means life."

John 12:36

While you have the light believe in the light, that you may become sons of light." On saying this Jesus went away and hid Himself.

Philippians 2:15

so that you may prove to be blameless and spotless, faultless children of God in a crooked and perverted age, in which you shine as light-bearers in the world as you continue

John 5:35

John was the lamp that kept on burning and shining, and you decided for a time to delight yourselves in his light.

Romans 2:19-20

and if you are sure that you are a guide to the blind, a light to those in darkness,

2 Corinthians 6:14

Stop forming intimate and inconsistent relations with unbelievers. What partnership can right-doing have with law-breaking, or how can light participate with darkness?

Ephesians 5:8-14

For at one time you were darkness itself, but now in union with the Lord you are light itself. You must live like children of light,

1 Thessalonians 5:5

for you are all sons of the light and sons of the day. We do not belong to the night or the darkness.

Revelation 1:20-1

The open secret of the seven stars that you have seen in my right hand, and of the seven golden lampstands, is this: The seven stars are the messengers of the seven churches, and the seven lampstands are the seven churches.

Revelation 21:14-27

The wall of the city had twelve foundation stones, and on them were the twelve names of the Lamb's twelve apostles.

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
John was the lamp that kept on burning and shining, and you decided for a time to delight yourselves in his light.
John 12:36
While you have the light believe in the light, that you may become sons of light." On saying this Jesus went away and hid Himself.
Romans 2:19
and if you are sure that you are a guide to the blind, a light to those in darkness,
2 Corinthians 6:14
Stop forming intimate and inconsistent relations with unbelievers. What partnership can right-doing have with law-breaking, or how can light participate with darkness?
Ephesians 5:8
For at one time you were darkness itself, but now in union with the Lord you are light itself. You must live like children of light,
Philippians 2:15
so that you may prove to be blameless and spotless, faultless children of God in a crooked and perverted age, in which you shine as light-bearers in the world as you continue
1 Thessalonians 5:5
for you are all sons of the light and sons of the day. We do not belong to the night or the darkness.
Revelation 1:20
The open secret of the seven stars that you have seen in my right hand, and of the seven golden lampstands, is this: The seven stars are the messengers of the seven churches, and the seven lampstands are the seven churches.
Revelation 2:1
"To the messenger of the church in Ephesus write: 'The One who is holding the seven stars in His right hand and is walking among the golden lampstands speaks as follows:

A city

Revelation 21:14
The wall of the city had twelve foundation stones, and on them were the twelve names of the Lamb's twelve apostles.