Luke 1:74-75
to grant unto us, having been delivered out of the hand of our enemies, to serve Him without fear,
Romans 6:14
For sin shall not have dominion over you: for you are not under the law, but under grace.
Romans 6:17-18
But thanks be unto God, that whereas ye were servants of sin, but you have obeyed from the heart the type of teaching into which ye were delivered:
Romans 6:22
But now having been made free from sin, and having become servants unto God, you have your fruit unto sanctification, and the end eternal life.
1 Corinthians 7:22-23
For the one having been called in the Lord, being a slave, is the Lord's freeman: likewise the one having been called, while free, is the slave of Christ.
1 Corinthians 9:19
For being free from all, I rendered myself servant to all, that I may gain the more.
1 Corinthians 9:21
to those without law, I became as without law, not being without the law of God, but under the law of Christ, that I may gain those without law.
Galatians 5:13
For you were called unto liberty, brethren; only use not the liberty unto an occasion to the flesh, but through divine love serve one another.