Many heretical denominations (Such as the Catholic and Orthodox Church) will use tradition to support their false doctrines. But, lets see what Jesus said regarding "Tradition".
2 Why do thy disciples transgress the tradition of the elders? for they wash not their hands when they eat bread.
3 But he answered and said unto them, Why do ye also transgress the commandment of God by your tradition?
4 For God commanded, saying, Honour thy father and mother: and, He that curseth father or mother, let him die the death.
5 But ye say, Whosoever shall say to his father or his mother, It is a gift, by whatsoever thou mightest be profited by me;
6 And honour not his father or his mother, he shall be free. Thus have ye made the commandment of God of none effect by your tradition.
7 Ye hypocrites, well did Esaias prophesy of you, saying,
8 This people draweth nigh unto me with their mouth, and honoureth me with their lips; but their heart is far from me.
9 But in vain they do worship me, teaching for doctrines the commandments of men.
Jesus Christ absolutely hates tradition whenever it is put before God's commandments. Here is a verse the heretics like the Orthodox Church will quote to support any of their unbiblical beliefs.
2 Thessalonians 2:15
Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.
This verse in no way says to put Tradition before God's commandments. Not only that, the Orthodox Church is so blind that they cannot even read! Notice it says "which ye have been taught". You don't just make up a new tradition and teach it. It has to be something the Bible has already taught! Here's another verse which supports what I have just told you.
2 Thessalonians 3:6
Now we command you, brethren, in the name of our Lord Jesus Christ, that ye withdraw yourselves from every brother that walketh disorderly, and not after the tradition which he received of us.
Again, it says tradition "received of us". It has to be something which was taught prior. The book of Colossians tells us to beware of the tradition of men.
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.
So now we know a tradition is made by men when it cannot be found in the Bible. And we know it is wrong to follow tradition whenever it is unbiblical or is put before God. Use this to your advantage in finding false doctrines. And finally, I would like to say
1 Corinthians 14:38
But if any man be ignorant, let him be ignorant.
He that hath an ear, let him hear.