Mark 7:3

For the Pharisees, and all the Jews, unless they wash their hands thoroughly, eat not, holding the tradition of the elders;

Mark 7:13

making void the word of God by your tradition, which ye handed down; and many such things ye do."

Galatians 1:14

and was making progress in Judaism above many companions of the same age in my own nation, being more exceedingly a zealot for my ancestral instructions.

Colossians 2:8

Beware, lest there should be any one who makes a spoil of you through his philosophy and vain deceits, according to the tradition of men, according to the rudiments of the world, and not according to Christ;

Matthew 15:2-6

"Why do Thy disciples transgress the tradition of the elders? for they do not wash their hands, when they eat bread!"

Mark 7:5

And the Pharisees and the scribes ask Him, "Why do not Thy disciples walk according to the tradition of the elders, but eat with defiled hands?"

Mark 7:7-10

But in vain do they worship Me, teaching as their doctrines the precepts of men.

Colossians 2:21-23

"Handle not, taste not, touch not,"

1 Peter 1:18

knowing that, not with perishable things, with silver or gold, were ye redeemed from your vain course of life handed down from your fathers;

Treasury of Scripture Knowledge

Summary

For the Pharisees, and all the Jews, except they wash their hands oft, eat not, holding the tradition of the elders.

General references

Bible References

The tradition

Mark 7:7
But in vain do they worship Me, teaching as their doctrines the precepts of men.
Matthew 15:2
"Why do Thy disciples transgress the tradition of the elders? for they do not wash their hands, when they eat bread!"
Galatians 1:14
and was making progress in Judaism above many companions of the same age in my own nation, being more exceedingly a zealot for my ancestral instructions.
Colossians 2:8
Beware, lest there should be any one who makes a spoil of you through his philosophy and vain deceits, according to the tradition of men, according to the rudiments of the world, and not according to Christ;
1 Peter 1:18
knowing that, not with perishable things, with silver or gold, were ye redeemed from your vain course of life handed down from your fathers;

General references

Luke 5:30
And the Pharisees and their scribes were murmuring against the disciples, saying, "Why are ye eating and drinking with the tax-collectors and sinners?"