In Rom 6:22, Paul restates the same truth — set free from sin, slaves to God — and adds the outcome of holiness and eternal life.

In Rom 6:20, Paul describes the former state: slaves to sin and free from righteousness — a direct contrast to the new freedom and slavery here.

In Rom 6:19, Paul expands the slavery metaphor, urging readers to offer themselves as slaves to righteousness — clarifying the command implicit here.

In Romans 6:14, the promise that sin will have no dominion directly results from being set free from sin here — reinforcing the freedom declared.

Romans 8:2 expands on this freedom, explaining the Spirit's work freeing from sin's law — a direct theological sequel.

In 1 Pet 2:16, believers are told to live as free people yet as God's slaves — a direct parallel to being freed from sin and enslaved to righteousness.

In Gal 5:1, Christ sets us free for freedom, complementing the freedom from sin and call to serve righteousness here.

In 1 Cor 7:22, the same paradox appears: believers are freed by Christ yet become His slaves — mirroring freedom from sin and slavery to righteousness.

In John 8:36, the Son sets believers free indeed — the same freedom from sin that results in slavery to righteousness here.

In Luke 1:75, serving God in holiness and righteousness all our days directly echoes the 'slaves of righteousness' concept — the purpose of freedom.

In Luke 1:74, being delivered from enemies to serve God without fear is a direct parallel to being set free from sin to serve righteousness.

Deuteronomy 6:21 recalls Israel's redemption from Egyptian slavery — a type of the liberation from sin described here.

Leviticus 25:55 declares Israel God's slaves, redeemed from Egypt — mirroring believers' new servitude to righteousness here.

Galatians 5:13 ties freedom to serving others through love — expanding the concept of slavery to righteousness here.

In Isaiah 26:13, Israel confesses being ruled by other lords and now honoring only God — a change of masters similar to freedom from sin and slavery to righteousness.

In Psalm 116:16, the psalmist declares being loosed from bonds to serve God — a parallel to being freed from sin to become slaves of righteousness.

In John 8:32, truth sets you free — a parallel to the freedom from sin here, though the source of freedom differs (truth vs. Christ's work).