1 Corinthians 7:16
How do you know, wife, whether you will save your husband? Or, how do you know, husband, whether you will save your wife? — Paul pivots to eschatological hope: the unbelieving spouse might be converted through the witness and prayer of the believing partner. The question 'how do you know?' (ti oidasō) expresses epistemic humility before God's purposes. Marriage to an unbeliever, while not ideal, becomes a potential avenue of redemption. This softens the prohibition against mixed marriage for those already married.