Mark 7:5

So the Pharisees and Scribes asked him. "Why do your disciples not follow the traditions of the elders? Why do they eat with 'common' unwashed hands?"

Matthew 15:2

"Why do your disciples keep transgressing the tradition of the elders by not washing their hands before eating?"

Mark 2:16-18

But when some scribes of the Pharisees saw him eating with the sinners and tax-gatherers, they said to his disciples, "Is he eating and drinking with tax-gatherers and sinners?"

Mark 7:2-3

They had noticed that some of his disciples were eating with "common," that is to say, unwashed hands.

Acts 21:21

"Now what they have been told about you, again and again, is that you teach all the Jews who are among the Gentiles, to forsake Moses, and not to circumcise their children, nor to follow the old customs.

Acts 21:24

"We have four men here under a vow; associate yourself with them, purify yourself with them, and pay their expenses so that they may have their heads shaved; then every one will know that there is no truth in the rumors that they have heard about you; but that you yourself walk orderly obeying the law.

Galatians 1:14

and how in my zeal for Judaism I outstripped many of my own age and nation, in my special zeal for the traditions of my forefathers.

2 Thessalonians 3:6

I summon you, in the name of the Lord Jesus Christ, to shun any brother who leads an idle and disorderly life, which is not according to the rule you received from me.

2 Thessalonians 3:11

But I hear that there are those of your number who are leading idle and disorderly lives, who are not busy, but mere busybodies.

Romans 4:12

He is the father of circumcision to those who are not merely circumcised, but who also walk in the steps of that faith of our father Abraham which he held while he was as yet uncircumcised.

Treasury of Scripture Knowledge

Summary

Then the Pharisees and scribes asked him, Why walk not thy disciples according to the tradition of the elders, but eat bread with unwashen hands?

Bible References

General references

Mark 2:16
But when some scribes of the Pharisees saw him eating with the sinners and tax-gatherers, they said to his disciples, "Is he eating and drinking with tax-gatherers and sinners?"
Matthew 15:2
"Why do your disciples keep transgressing the tradition of the elders by not washing their hands before eating?"
Acts 21:21
"Now what they have been told about you, again and again, is that you teach all the Jews who are among the Gentiles, to forsake Moses, and not to circumcise their children, nor to follow the old customs.
Romans 4:12
He is the father of circumcision to those who are not merely circumcised, but who also walk in the steps of that faith of our father Abraham which he held while he was as yet uncircumcised.
2 Thessalonians 3:6
I summon you, in the name of the Lord Jesus Christ, to shun any brother who leads an idle and disorderly life, which is not according to the rule you received from me.