My spouse is not a believer - what do I do
Scripture speaks directly to this. Paul told believers married to unbelievers not to leave: 'If any brother hath a wife that believeth not, and she be pleased to dwell with him, let him not put her away' (1 Corinthians 7:12-13), because your presence brings a sanctifying influence into the home (1 Corinthians 7:14).
Peter counseled spouses to win their partners not by pressure but by conduct - 'they also may without the word be won by the conversation [conduct] of the wives' (1 Peter 3:1). Practically: pray persistently (more than you preach), live your faith visibly and humbly, do not nag or treat your spouse as a project, and find your own spiritual community so the weight is not carried alone.
The loneliness of an unequally shared faith is real - God sees it. And do not lose hope: many believers prayed for a spouse for decades and saw God answer (Luke 18:1 - 'men ought always to pray, and not to faint').
From Bible Navigator's study library. Scripture quotations are from the King James Version (public domain). This is encouragement for study and reflection, not professional counseling - if you are in crisis, call or text 988.