Yes. you can be married in the eyes of God without being married in the eyes of man or man's government. In the bible, there's actually no such thing as premarital sex. because sex is marriage. In the bible you are considered married to the person once you have sex with him.
Asking this, would that include lust for another, in our minds where Christ says if a man has an eye for another in lust from his heart he has committed Adultery with her / him in their heart.
And in saying this said gouge out thy eye, better for part of you to go to heaven than all of you go to hell, and this was him walking this earth under Law and Prophets fulfilling them all, went to the cross for us and rose from the grave to give us new life in Spirit and truth, to learn to walk by the Spirit of truth only in love and Mercy as he did, to us all as we go here in this world, how are we to respond to each and every situation or learn to:
Matthew 10:15-20New International Version (NIV)[SUP]
15 [/SUP]Truly I tell you, it will be more bearable for Sodom and Gomorrah on the day of judgment than for that town.
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16 [/SUP]“I am sending you out like sheep among wolves. Therefore be as shrewd as snakes and as innocent as doves. [SUP]
17 [/SUP]Be on your guard; you will be handed over to the local councils and be flogged in the synagogues. [SUP]
18 [/SUP]On my account you will be brought before governors and kings as witnesses to them and to the Gentiles. [SUP]
19 [/SUP]But when they arrest you, do not worry about what to say or how to say it. At that time you will be given what to say, [SUP]
20 [/SUP]for it will not be you speaking, but the Spirit of your Father speaking through you.
Are we not to be Married to Christ to Father as one. read Romans 7, about that allegory to whom we are to be espoused to.