Marriage, Morality, & Singleness for the Christian

God created the first marriage (Adam & Eve).

God defines marriage (Genesis 2:23-24; Matthew 19:4-6; Mark 10:6-7).

Marriage reflects Christ's relationship and union with believers / the church (1 Corinthians 6:15-17 & Ephesians 5:22-32).

Adultery is to be taken seriously (Deuteronomy 22:22)

Believers are to abstain from and flee from immorality 

(1 Thessalonians 4:3-8; 1 Corinthians 6:18-19; Ephesians 5:3; Colossians 3:5; Genesis 39:12).

The desire for an immoral relationship is covetous and idolatrous (Exodus 20:17; Matthew 5:28; Job 31:1; Genesis 19:5-7; Colossians 3:5).

Renewing the mind is what Christians should be doing which means we should be careful about what enters our minds (Romans 12:2; Psalm 119:11; Proverbs 4:23).

Immorality is fleshly and to be repented of  (Galatians 5:19; 2 Corinthians 12:21).

Putting to death the deeds of the flesh is part of living by the Spirit (Romans 8:13). 

A married man & woman shouldn't deprive the other of intimacy (1 Corinthians 7:1-6).

Christians are not to have lust or intimacy with the same gender regardless of the world's equating it with marriage.  It is not marriage as defined by God, but it is actually a judgment & a sin to be repented of and fled from (Romans 1:25-27; Leviticus 18:22 & 20:13; 1 Timothy 1:9-11; 1 Corinthians 6:9-11).

Incest & Bestiality are also outside of  God's design, and are condemned in Scripture (Deuteronomy 27:21-22; Exodus 22:19; Leviticus 2:15; Leviticus 18:23).

Singleness is nothing to be ashamed of, but if a desire for intimacy is there, then it is not wrong for a never married person or widowed individual to marry (1 Corinthians 7).

This does NOT allow for lust for intimacy not defined in Scripture as marriage (same-sex desires & lust should be repented of and fled from - not contemplated and accepted as okay).

So, I see from Scripture that marriage was meant to be between one man and one woman, that marriage reflects the union of Christ with believers (in a spiritual sense), that immorality is to be fled from and repented of, that married couples should be intimate with each other (exclusively), that homosexuality (and the desire for it) is sinful (not to be practiced by believers), and that all other forms of physically intimate relationships are not a part of God's plan for believers.