John 8:31-36
To the Jews who had believed him, Jesus said, “If you hold to my teaching, you are really my disciples. 32 Then you will know the truth, and the truth will set you free.”33 They answered him, “We are Abraham’s descendants and have never been slaves of anyone. How can you say that we shall be set free?”34 Jesus replied, “Very truly I tell you, everyone who sins is a slave to sin. 35 Now a slave has no permanent place in the family, but a son belongs to it forever. 36 So if the Son sets you free, you will be free indeed.
Romans 6:6-7
For we know that our old self was crucified with him so that the body of sin might be done away with, that we should no longer be slaves to sin— 7 because anyone who has died has been freed from sin.
Romans 6:16-21
Don't you know that when you offer yourselves to someone to obey him as slaves, you are slaves to the one whom you obey — whether you are slaves to sin, which leads to death, or to obedience, which leads to righteousness? 17 But thanks be to God that, though you used to be slaves to sin, you wholeheartedly obeyed the form of teaching to which you were entrusted. 18 You have been set free from sin and have become slaves to righteousness.
19 I put this in human terms because you are weak in your natural selves. Just as you used to offer the parts of your body in slavery to impurity and to ever-increasing wickedness, so now offer them in slavery to righteousness leading to holiness. 20 When you were slaves to sin, you were free from the control of righteousness.
1 Corinthians 7:21-22
Were you a slave when you were called? Don't let it trouble you — although if you can gain your freedom, do so. 22 For he who was a slave when he was called by the Lord is the Lord's freedman; similarly, he who was a free man when he was called is Christ's slave.
Galatians 4:7
So you are no longer a slave, but a son; and since you are a son, God has made you also an heir.
Ephesians 6:6
Obey them not only to win their favor when their eye is on you, but as slaves of Christ, doing the will of God from your heart.
1 Peter 2:16
Live as free people, but do not use your freedom as a cover-up for evil; live as God’s slaves.
2 Peter 2:19-20
They promise them freedom, while they themselves are slaves of depravity — for a man is a slave to whatever has mastered him.
Who is your Master/Lord? Jesus or self/sin
hope this helps !!!