The Facts on The Masonic Lodge (Harvest House, 1989), pp. 40, 42
If a Mason has sworn allegiance to the Lodge, should he break his oaths?
God tells us to “have nothing to do with the fruitless deeds of darkness, but rather expose them. For it is shameful even to mention what the disobedient do in secret” (Ephesians 5:11,12).
But once a person is already a Mason, what should he do if he realizes that Masonry is wrong and sinful? What can someone do who has already taken the oath “for all time?” Is that person bound to keep his oath? Here is what the Bible advises you to do:
“If a person swears thoughtlessly with his lips to do evil or to do good, in whatever matter a man may speak thoughtlessly with an oath, and it is hidden from him, and then he comes to know it, he will be guilty in one of these. So it shall be when he becomes guilty in one of these, that he shall confess that in which he has sinned. He shall bring his guilt offering to the Lord for his sin which he has committed….So the priest shall make atonement on his behalf for his sin which he has committed, and it shall be forgiven him” (Leviticus 5:4-6, 10).
The Bible tells every person that if he swears an oath, if the implications are hidden from him, when he understands the implication and finds himself guilty of offending God’s moral law, then he is guilty, and is to confess that he has sinned and to repent….
Right now confess to God that you have ignorantly taken a vow against Him and His teachings and ask His forgiveness. Then notify your Lodge in writing that you have decided to leave the Lodge. Tell them you believe that their teaching and their vows are not biblical, and as a Christian you can no longer participate according to 2 Corinthians 6:14-18 and Ephesians 5:8-17.