I do not wish to sound harsh in my response , but yes,there are plenty of scriptures in the Bible that discourage cohabitation. Before Ishare them, the example given of Mary and Joseph by Reject-tech, ishighlyinappropriate. First, Joseph was given direct instructions from God throughGabriel regarding the care of Mary and he followed them as he should have. Second, their situation was extremely uniqueconsidering she was carrying the Savior of the world. Joseph being espoused to her charged him withbeing loyal to her and taking care of her, until they married, which he did despite the surprisepregnancy. Third, there is no evidence that they actually lived together, in fact, Matt 1:19 reads that Joseph put her away privily or privately as to not make her a public example. They travelled to Bethlehem together on business to be taxed, which was a requirement (she gave birth while she was there). Luke even lets us know thatMary went to live with her cousin Elisabeth for three months of herpregnancy. Finally, consider thefollowing scriptures for your own sake: Abstain from all appearance of evil. IThess 5:22//Neither give place to the devil. Eph 4:27// I beseech you therefore, brethren, by the mercies ofGod, that ye present your bodies a living sacrifice, holy, acceptableunto God, which is your reasonable service. And be not conformed to this world:but be ye transformed by the renewing of your mind, that ye may prove what isthat good, and acceptable, and perfect, will of God Rom 12:1-2//. Jesus said unto him, It is written again, Thou shalt nottempt the Lord thy God. Matt 4:7// Let no man say when he is tempted, I amtempted of God: for God cannot be tempted with evil, neither tempteth he anyman: But every man is tempted, when he is drawn away of his own lust, andenticed. James 1:13-14// For I know that in me (that is, in my flesh,) dwellethno good thing: for to will is present with me; but how to perform that whichis good I find not. For the goodthat I would I do not: but the evil which I would not, that I do. Now if I do that I would not, it is no more Ithat do it, but sin that dwelleth in me. I find then a law, that, when I woulddo good, evil is present with me. Rom7:18-21//
There areso many more scriptures to share regarding this situation (shoot me an email ifyou want more). Despite what you feel is"strong faith" you are purposefully placing yourself in a position tobe tempted to sin and the devil loves to take advantage of thoseopportunities. We are to resisttemptation, but cohabiting with someone you are attracted to is an open door toinvite temptation and that is exactly what the devil wants you to do.