Jesus addressed "Traditions of men" in Mark 7 and John 8. His objective was to shake people from their firm faith in their man-made traditons with the truth. Sadly, then as now, some people won't let go of their religious upbringing even when faced with the fact that it is unBiblical. They are scared. Mark 7 shows how traditions can control people. Notice: Verse 3 they were, "holding the tradition of the elders." In verse 5 they tried to hold Jesus to these. "Why walk not thy disciples according to the tradition of the elders?" Jesus responds in v.7-13. "Howbeit in vain do they worship me, teaching for doctrines the commandments of men." Verse 8, "For laying aside the commandments of God, ye hold the tradition of men." Verse 9, "Full well ye reject the commandment of God, that ye may keep your own tradition." Verse 13, "Making the Word of God of none effect through your tradition..." Col. 2:8 says, "Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ."
There are Biblical traditions which must be held, and there are unBiblical traditions which must be forsaken. In Mark 7 the Pharisees tried to please God by washing their hands. That was a tradition received from their fathers. You may think that is silly, but where does the Bible tell you to Baptize Babies? Where does the Bible tell you to confess your sins to a priest? Where does the Bible say to be confirmed? Where does the Bible say to rehearse catechisms? Where does the Bible say to Worship God only on Sunday? Search in vain. Those things aren't there. They are traditions received from your fathers. Jesus said in vs. 13 that they made the "Word of God of none effect through [their] tradition." They cancelled the effect of the Word of God. As long as a person holds unBiblical traditions, they will reject God's Word and make it of none effect. That includes "Church Traditions"
In John 8:32 Jesus, speaking on the same topic, said "And ye shall know the truth, and the truth shall make you free." They responded in vs.59 by trying to stone Him. (We sometimes sense a similar response as we kindly show people that their "hand-me-down" traditions have no Biblcal basis.)
A man was recently saved at our church. He began to tell his mother how he got saved and to persuade her with the truth. Her response was to get angry with him. She chose to stay with what she had grown up with regardless of truth. Why do you believe what you believe? Is it because the Bible taught you, or have you blindly accepted the teachings of your religious system? Have you been made free by Christ, or are you a captive to unBiblical religious traditions?