“but now you are light in the Lord.”

“Walk as children of light (for the fruit of the Spirit is in all goodness, righteousness, and truth)“

“Awake, you who sleep,
Arise from the dead,
And Christ will give you light.”

Walk in Light
For you were once darkness, but now you are light in the Lord. Walk as children of light 9 (for the fruit of the Spirit is in all goodness, righteousness, and truth), 10 finding out what is acceptable to the Lord. 11 And have no fellowship with the unfruitful works of darkness, but rather expose them. 12 For it is shameful even to speak of those things which are done by them in secret. 13 But all things that are exposed are made manifest by the light, for whatever makes manifest is light. 14 Therefore He says:
“Awake, you who sleep,
Arise from the dead,
And Christ will give you light.”
Ephesians 5.8-14

“Father of lights”

“Every good gift and every perfect gift is from above, and comes down from the Father of lights, with whom there is no variation or shadow of turning.”
James 1.17

“You are the light of the world.”

“Let your light so shine before men, that they may see your good works and glorify your Father in heaven”

“You are the light of the world. A city that is set on a hill cannot be hidden. 15 Nor do they light a lamp and put it under a basket, but on a lampstand, and it gives light to all who are in the house. 16 Let your light so shine before men, that they may see your good works and glorify your Father in heaven.
Matthew 5.14-16

“I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life.”

Then Jesus spoke to them again, saying, “I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life.”
John 8.12 

“the light of this world“

Jesus answered, “Are there not twelve hours in the day? If anyone walks in the day, he does not stumble, because he sees the light of this world. But if one walks in the night, he stumbles, because the light is not in him.”
John 11.9-10

“For You will light my lamp;
The Lord my God will enlighten my darkness.”
 
For You will light my lamp;
The Lord my God will enlighten my darkness.
Psalm 18.28

“In Your light we see light.“

For with You is the fountain of life;
In Your light we see light.
Psalm 36.9

“In your light we receive the light of revelation.”

To know you is to experience a flowing fountain,
drinking in your life, springing up to satisfy.
In your light we receive the light of revelation.
Psalm 36.9 TPT

“For the commandment is a lamp,
And the law a light“

For the commandment is a lamp,
And the law a light;
Reproofs of instruction are the way of life
Proverbs 6.23

“Your word is a lamp to my feet
And a light to my path.”

Your word is a lamp to my feet
And a light to my path. 
Psalm 119.105

“He who loves his brother abides in the light, and there is no cause for stumbling in him.“

He who says he is in the light, and hates his brother, is in darkness until now. 10 He who loves his brother abides in the light, and there is no cause for stumbling in him. 11 But he who hates his brother is in darkness and walks in darkness, and does not know where he is going, because the darkness has blinded his eyes.
1 John 2.9-11

“You are all sons of light and sons of the day.“

But you, brethren, are not in darkness, so that this Day should overtake you as a thief. 5 You are all sons of light and sons of the day. We are not of the night nor of darkness. 6 Therefore let us not sleep, as others do, but let us watch and be [a] sober (self-controlled). 7 For those who sleep, sleep at night, and those who get drunk are drunk at night. 8 But let us who are of the day be sober, putting on the breastplate of faith and love, and as a helmet the hope of salvation.
1 Thessalonians 5.4-11

son

5207. huios
Strong’s Concordance (Greek)
Definition: a son
Usage: a son, descendent.
HELPS Word-studies
 
5207
hyiós – properly, a son (by birth or adoption); (figuratively) anyone
sharing the same nature as their Father. For the believer, becoming a
son of God begins with being reborn (adopted) by the heavenly Father –
through Christ (the work of the eternal Son). In the NT, 5207 /hyiós
(“son”) Equally refers to female believers (Gal 3:28).
 
5207 /hyiós (“son”) emphasizes likeness of the believer to the heavenly Father, i.e. resembling His character more and more by living in faith (“God’s inwrought persuasons,” see 4102 /pístis).
 
5207 /hyiós (“son”) highlights the (legal) right to the Father’s inheritance, i.e. as the believer lives in conformity with the Father’s nature (purpose).