In the Letter of St. Paul to the Corinthians we see the following verse: “For the unbelieving husband is consecrated through his wife, and the unbelieving wife is consecrated through her husband.” (1 Corinth 6:14)
“Likewise you wives, be submissive to your husbands, so that some, though they do not obey the word, may be won without a word by the behavior of their wives, when they see your reverence and chaste behaviour.” 1 Peter 3:1-2
If your spouse does not believe or love God, we as Christians are urged to pray for his/her conversion. Let us offer all our sacrifices for their salvation. Our God will not refuse our prayers for our spouse’s conversion and will lead him/her to the Church. Here is a daily prayer for the conversion of your spouse.
Oh yes, my God, I must have it. You must have it, this straight, true soul. He/She must know You and love You, become the humble instrument of Your glory, and do the work of an apostle. Take him/her entirely to Yourself. Make of my trials, my sufferings and my renunciations the road by which you will come to this dear heart. Is there anything that belongs to me alone that I would not be ready to offer You to obtain this conversion, this grace so longed for? My sweet Saviour, between Your heart and mine there must be this compact of love, which will give You a soul and will give me for eternity him/her whom I cherish, whom I want to be with me in Heaven.