In 1 Cor 7:7, Paul states he wishes all were like him (unmarried), contrasting with his right to take a wife in 9:5.

In Matthew 8:14, Peter's mother-in-law is healed, confirming he was married — supporting Paul's claim that apostles could have believing wives.

Matthew 13:55 lists Jesus' brothers by name (James, Joseph, Simon, Judas), providing identity for the 'brothers of the Lord' Paul references.

In Mark 1:30, Simon's mother-in-law is mentioned, providing direct evidence that Peter was married, affirming Paul's point.

Mark 6:3 similarly names Jesus' brothers (James, Joses, Judas, Simon) and mentions sisters, confirming the group Paul calls 'brothers of the Lord.'

Acts 1:14 explicitly includes Jesus' brothers among the early believers, validating the group Paul refers to as 'brothers of the Lord.'

Galatians 1:19 identifies James as the Lord's brother, giving a specific name to one of the 'brothers of the Lord' Paul mentions.

1 Timothy 4:3 condemns those who forbid marriage, directly opposing Paul's claim of the right to marry.

In Luke 4:38, Simon's mother-in-law is healed, confirming Peter was married and supporting Paul's claim about apostles' rights.

Luke 8:20 identifies Jesus' mother and brothers, confirming that 'the brothers of the Lord' in 1 Cor 9:5 refer to Jesus' half-brothers.

John 2:12 records Jesus' brothers traveling with him, attesting to their existence and supporting Paul's mention of 'brothers of the Lord.'

Romans 16:1 calls Phoebe 'our sister,' showing Paul's common use of 'sister' for a female believer, which clarifies the meaning of 'sister as wife' in 1 Corinthians 9:5.

In 1 Timothy 3:2, Paul requires overseers to be husband of one wife, affirming the marriage right Paul defends here.

1 Timothy 5:2 instructs treating younger women as sisters, reinforcing the familial language Paul uses when referring to a believing wife as a 'sister.'

Titus 1:6 also requires elders to be faithful to one wife, supporting Paul's assumption that marriage is acceptable.

Hebrews 13:4 declares marriage honorable, echoing the positive view of marriage implied in Paul's right to take a wife.