Some teach that in order to serve God in a most holy way, it is necessary to refrain from marriage. They take vows to be priests and nuns who wear robes and titles like “Reverend” or “Father.” The Bible teaches against this (Mt 23:9). Peter and the other apostles were married (1 Cor 9:5). Paul, the unmarried apostle, said “Because of fornication, let each man have his own wife and let each woman have her own husband” (1 Cor 7:2). Though Paul was able to live purely as a single man, he never commanded celibacy for any man. Rather, he saw marriage as “honorable among all” and said “the marriage bed (“coitus” in Greek) must be undefiled” (Heb 13:4). A celibate priesthood often leads to sexual immorality. God ordained marriage in the beginning (Gen 2:18). God’s arrangement is that the younger marry and bear children (1 Tim 5:14). To have sex before or outside of marriage is sin (adultery). It will be punished by God. Couples living together having sex without marriage sin against Almighty God. Adultery, fornication and homosexuality are sins (Rom 1:18-32). Repent (change) and be baptized (immersed) for the forgiveness of all your sins (Acts 2:38). See on Rom. 1:18-32.