2 Corinthians 5:20 shows Paul beseeching on Christ's behalf — this is the immediate context for his plea in 2 Corinthians 6:1 not to receive grace in vain.

2 Corinthians 5:18-20 describes believers as ambassadors of reconciliation — this sets up Paul's plea in 2 Corinthians 6:1 not to receive grace in vain.

Galatians 4:11 uses the same 'in vain' (εἰς κενόν) concern—Paul fears his labor was wasted, paralleling the warning against receiving grace fruitlessly.

Galatians 3:4 directly echoes the phrase 'in vain' (εἰς κενόν), asking if their sufferings were wasted—identical concern about fruitless reception.

Galatians 2:21 also warns against nullifying grace by seeking righteousness through law, reinforcing Paul's appeal not to receive grace in vain.

Hebrews 12:15 urges not to 'fail to obtain the grace of God', directly paralleling the warning against receiving grace in vain.

1 Corinthians 3:9 calls Paul and others 'fellow workers with God' — the exact same phrase used in 2 Corinthians 6:1.

In 1 Corinthians 15:10, 'grace toward me was not in vain' and 'I worked harder' perfectly mirrors the main verse's themes.

1 Thessalonians 2:1 uses the same 'not in vain' phrase about Paul's ministry — a direct verbal parallel to the appeal.

In 1 Corinthians 15:2, 'believed in vain' directly parallels 'receive the grace of God in vain', warning against empty faith.

In Acts 13:43, Paul and Barnabas urge believers to continue in God's grace—a direct verbal and thematic parallel to Paul's appeal in 2 Corinthians 6:1.

Luke 19:42 shows Jerusalem missing their time of visitation—a stark example of failing to receive God's grace, illustrating Paul's warning about receiving grace in vain.

Mark 16:20 shows the Lord working with the disciples, directly echoing Paul’s description of being God’s co-workers.

Luke 7:30 describes Pharisees rejecting God’s purpose — a negative example of receiving grace in vain.

Isaiah 55:6 urges seeking God while He is near, echoing Paul’s call not to waste the grace offered now.

In Ephesians 4:7, 'grace was given to each' underscores grace as a gift, making the warning not to receive it in vain more urgent.

In Colossians 1:6, the gospel bears fruit and grows — the very result of not receiving grace in vain.

Colossians 1:23 insists on continuing in faith — the active response required to avoid receiving grace in vain.

Titus 2:11 describes grace appearing with salvation, the very grace Paul urges not to receive in vain.

1 Peter 4:10 calls believers to steward God's varied grace, complementing Paul's warning against receiving it in vain.

1 Thessalonians 4:1 urges walking to please God — the practical outcome of not receiving grace in vain.

Deuteronomy 5:29 expresses God's desire for a heart that obeys, linking to Paul's appeal not to waste grace through disobedience.

In Ephesians 4:1, Paul urges to 'walk worthy of the calling'—parallels the appeal not to receive grace in vain, both exhorting a worthy response.

Romans 12:1 similarly appeals based on God's mercies, urging believers to respond appropriately—mirroring the call not to receive grace in vain.

Luke 14:17 invites to a feast where everything is ready — similar to God's offer of grace not to be received in vain.

Proverbs 17:16 questions a fool having money without sense, similar to having grace without using it wisely.