The roots of Freemasonry extend at least as far back as the Middle Ages. The guildsmen and craftsmen of that time were called Masons. For protection and credibility, these persons formed primitive trade unions (lodges).
New members, including politicians, clergymen, and scientists, gradually began to formulate various rituals and doctrines to accompany some of the symbols already in use by the working masons (usually tools of the trade). It was at this point that occultism also began to be brought into the lodges.
The popularity of Freemasonry has made it a model for hundreds of other fraternal societies. As far back as 1927, for instance, nearly all of the 800 fraternal orders of that time had adopted Masonic-like symbols, signs, passwords, rituals, oaths, obligations and degrees. The temple ordinances of the Mormon temple ceremony are also suspiciously close to the ceremony used in Freemasonry. Signs, grips, oaths and tokens used in Mormonism are so close it's almost certain that Joseph Smith borrowed these Masonic practices from Freemasonry. Not that surprising considering Smith was a Mason himself (Documentary History of the Church 4:550-551).
The Masons, like so many false religions, hold as a core belief one of Satan's biggest lies. That being that all faiths and all scriptures lead to the same God. The following quote is taken from the Masonic Belief Statement:
"...By the very honor which Masonry pays to the Bible, it teaches us to revere every book of faith by which men find help for today and hope for the morrow, joining hands with the man of Islam as he takes oath on the Koran, and with the Hindu as he makes covenant with God upon the book that he loves best".
The God of Abraham, Isaac and Jacob makes it very clear that the Bible is the only Word of God and warns us to stay away from those who would teach otherwise.
Whosoever transgresses, and abides not in the doctrine of Christ, hath not God. He that abides in the doctrine of Christ, he hath both the Father and the Son. If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed: For he that biddeth him God speed is partaker of his evil deeds (2 John 9-11)
Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father, which is in heaven. Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? And in thy name have cast out devils? And in thy name done many wonderful works? And then will I profess unto them, I never knew you: depart from me, ye that work iniquity. Matthew 7:21-23