Apostle Paul wrote in I Corinthians 7:32 that it is not a sin to be married, however he is saying that he that is unmarried cares for the things that belong to the Lord and how he may please the Lord, where he that is married cares about the things of the world and the things how to care for the husband or wife. Being married brings more cares of the world into the life and can take your time away from serving the Lord. He also states though that he who needs to get married to do so, as it is not a sin and if a man or woman needs a helpmate, it is not sin. You will just have more cares to please each other, cares of the world, and less time for God.