Jesus left no doubt about His mind on the subject of marriage in His statements in Matthew 19:4-6 Matthew 19:4-6  And he answered and said to them, Have you not read, that he which made them at the beginning made them male and female,
 And said, For this cause shall a man leave father and mother, and shall join to his wife: and they two shall be one flesh?
 Why they are no more two, but one flesh. What therefore God has joined together, let not man put asunder.
American King James Version×: “Have you not read that He who made them at the beginning ‘made them male and female,’ and said, ‘For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh’? So then, they are no longer two but one flesh. Therefore what God has joined together, let not man separate.”
Following the scriptural example, the United Church of God graciously welcomes into our fellowship all people who repent of their sins—any sins. But we neither practice nor recognize same-sex “unions” or marriages.
Homosexuality is an explosively controversial subject in our present society, but not a new issue for the Church of God. It confronted the early New Testament Church. Note the following from 1 Corinthians 6:9-10 1 Corinthians 6:9-10  Know you not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with mankind,
 Nor thieves, nor covetous, nor drunkards, nor revilers, nor extortionists, shall inherit the kingdom of God.
American King James Version×: “Do you not know that the unrighteous and the wrongdoers will not inherit or have any share in the kingdom of God? Do not be deceived (misled); neither the impure and immoral, nor idolaters, nor adulterers, nor those who participate in homosexuality…will inherit or have any share in the kingdom of God” (Amplified Bible).
Based upon the biblical instruction, the United Church of God believes homosexual behavior to be both unnatural and sin (Romans 1:26-27 Romans 1:26-27  For this cause God gave them up to vile affections: for even their women did change the natural use into that which is against nature:
 And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompense of their error which was meet.
American King James Version×). The Scriptures are plain on the subject.
What of people who practiced homosexuality in the past? Here is what follows the above quote: “And such were some of you. But you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus and by the Spirit of our God” (1 Corinthians 6:11 1 Corinthians 6:11And such were some of you: but you are washed, but you are sanctified, but you are justified in the name of the Lord Jesus, and by the Spirit of our God.
American King James Version×). Members of the Church of God in Corinth were guilty of some or all of the sins listed—including homosexuality—but later converted and turned from their sins. Following the scriptural example, the United Church of God graciously welcomes into our fellowship all people who repent of their sins—any sins. But we neither practice nor recognize same-sex “unions” or marriages.