Mark 10:19 includes 'Do not defraud' among Jesus' commandments — directly prohibiting the same sin Paul condemns here.

1 Thessalonians 4:6 explicitly warns against wronging a brother — directly parallel to Paul's charge that Corinthians defraud their own brothers.

Leviticus 19:11 prohibits stealing and false dealing — the OT foundation for Paul's rebuke of defrauding fellow believers.

Leviticus 25:14 commands not to wrong one another in business — the exact principle Paul applies to defrauding fellow believers.

In Isaiah 5:7, God laments that His vineyard yielded bloodshed instead of justice—echoing Paul's charge that believers wrong their own brothers.

In Matthew 5:24, Jesus commands reconciliation before worship—directly addressing the need to resolve the wrongs Paul condemns among believers.

2 Corinthians 12:20 lists disputes and strife among the Corinthians—showing Paul's ongoing concern about the interpersonal sins that lead to defrauding.

Colossians 3:13 instructs bearing with and forgiving complaints—providing the positive counterpart to Paul's rebuke of wronging each other.

Colossians 3:25 warns that wrongdoers will be repaid — reinforcing the seriousness of the defrauding Paul condemns.

James 5:4 condemns defrauding laborers of wages — a specific form of the injustice Paul rebukes among the Corinthians.

Ezekiel 45:9 tells princes to stop expropriations—mirroring Paul's condemnation of defrauding brethren as a form of injustice among God's people.

Micah 2:2 condemns coveting and seizing fields/houses — the same kind of defrauding Paul rebukes among believers.

Malachi 3:5 warns God's judgment on those who oppress workers — parallel to Paul's rebuke of defrauding fellow believers.