The noun phōs (light) in the Gospels-Acts

(Translation from NRSV with a few modifications for a more litteral meaning)

Legend:
Blue color: phōs = light as a symbol

Matthew

4: 16the people who sat in darkness have seen a great light (phōs), and for those who sat in the region and shadow of death light (phōs) has dawned."
5: 14"You are the light (phōs) of the world. A city built on a hill cannot be hid.
5: 16In the same way, let your light (phōs) shine before others, so that they may see your good works and give glory to your Father in heaven.
6: 23but if your eye is unhealthy, your whole body will be full of darkness. If then the light (phōs) in you is darkness, how great is the darkness!
10: 27What I say to you in the dark, tell in the light (phōs); and what you hear whispered, proclaim from the housetops.
17: 2And he was transfigured before them, and his face shone like the sun, and his clothes became white as light (phōs).

Mark

14: 54Peter had followed him at a distance, right into the courtyard of the high priest; and he was sitting with the guards, warming himself at the fire (phōs).

Luke

2: 32a light (phōs) for revelation to the Gentiles and for glory to your people Israel."
8: 16"No one after lighting a lamp hides it under a jar, or puts it under a bed, but puts it on a lampstand, so that those who enter may see the light (phōs).
11: 33"No one after lighting a lamp puts it in a cellar, but on the lampstand so that those who enter may see the light (phōs).
11: 35Therefore consider whether the light (phōs) in you is not darkness.
12: 3Therefore whatever you have said in the dark will be heard in the light (phōs), and what you have whispered behind closed doors will be proclaimed from the housetops.
16: 8And his master commended the dishonest manager because he had acted shrewdly; for the children of this age are more shrewd in dealing with their own generation than are the children of light (phōs).
22: 56Then a servant-girl, seeing him in the firelight (phōs), stared at him and said, "This man also was with him."

John

1: 4in him was life, and the life was the light (phōs) of all people.
1: 5The light (phōs) shines in the darkness, and the darkness did not overcome it.
1: 7He came as a witness to testify to the light (phōs), so that all might believe through him.
1: 8He himself was not the light (phōs), but he came to testify to the light (phōs).
1: 9The true light (phōs), which enlightens everyone, was coming into the world.
3: 19And this is the judgment, that the light (phōs) has come into the world, and people loved darkness rather than light (phōs) because their deeds were evil.
3: 20For all who do evil hate the light (phōs) and do not come to the light (phōs), so that their deeds may not be exposed.
3: 21But those who do what is true come to the light (phōs), so that it may be clearly seen that their deeds have been done in God."
5: 35He was a burning and shining lamp, and you were willing to rejoice for a while in his light (phōs).
8: 12Again Jesus spoke to them, saying, "I am the light (phōs) of the world. Whoever follows me will never walk in darkness but will have the light (phōs) of life."
9: 5As long as I am in the world, I am the light (phōs) of the world."
11: 9Jesus answered, "Are there not twelve hours of daylight? Those who walk during the day do not stumble, because they see the light (phōs) of this world.
11: 10But those who walk at night stumble, because the light (phōs) is not in them."
12: 35Jesus said to them, "The light (phōs) is with you for a little longer. Walk while you have the light (phōs), so that the darkness may not overtake you. If you walk in the darkness, you do not know where you are going.
12: 36While you have the light (phōs), believe in the light (phōs), so that you may become children of light (phōs)." After Jesus had said this, he departed and hid from them.
12: 46I have come as light (phōs) into the world, so that everyone who believes in me should not remain in the darkness.

Acts

9: 3Now as he was going along and approaching Damascus, suddenly a light (phōs) from heaven flashed around him.
12: 7Suddenly an angel of the Lord appeared and a light (phōs) shone in the cell. He tapped Peter on the side and woke him, saying, "Get up quickly." And the chains fell off his wrists.
13: 47For so the Lord has commanded us, saying, 'I have set you to be a light (phōs) for the Gentiles, so that you may bring salvation to the ends of the earth.'"
16: 29The jailer called for lights (phōs), and rushing in, he fell down trembling before Paul and Silas.
22: 6"While I was on my way and approaching Damascus, about noon a great light (phōs) from heaven suddenly shone about me.
22: 9Now those who were with me saw the light (phōs) but did not hear the voice of the one who was speaking to me.
22: 11Since I could not see because of the brightness of that light (phōs), those who were with me took my hand and led me to Damascus.
26: 13when at midday along the road, your Excellency, I saw a light (phōs) from heaven, brighter than the sun, shining around me and my companions.
26: 18to open their eyes so that they may turn from darkness to light (phōs) and from the power of Satan to God, so that they may receive forgiveness of sins and a place among those who are sanctified by faith in me.'
26: 23that the Messiah must suffer, and that, by being the first to rise from the dead, he would proclaim light (phōs) both to our people and to the Gentiles."

1 John

1: 5This is the message we have heard from him and proclaim to you, that God is light (phōs) and in him there is no darkness at all.
1: 7but if we walk in the light (phōs) as he himself is in the light (phōs), we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.
2: 8Yet I am writing you a new commandment that is true in him and in you, because the darkness is passing away and the true light (phōs) is already shining.
2: 9Whoever says, "I am in the light (phōs)," while hating a brother or sister, is still in the darkness.
2: 10Whoever loves a brother or sister lives in the light (phōs), and in such a person there is no cause for stumbling.