Mark 7:5

And the Pharisees and the scribes asked him, "Why do your disciples not live according to the tradition of the elders, but eat their bread with unclean hands?"

Matthew 15:2

"Why do your disciples break the tradition of the elders? For they do not wash their hands when they eat {a meal}."

Mark 2:16-18

And the scribes of the Pharisees, [when they] saw that he was eating with sinners and tax collectors, began to say to his disciples, "Why does he eat with tax collectors and sinners?"

Mark 7:2-3

And they saw that some of his disciples were eating their bread with unclean--that is, unwashed--hands.

Acts 21:21

And they have been informed about you that you are teaching all the Jews [who are] among the Gentiles [the] abandonment of Moses, telling them not to circumcise [their] children or to live according to [our] customs.

Acts 21:24

Take these [men] [and] purify yourself along with them and {pay their expenses} so that they can shave [their] heads, and everyone will know that [the things] which they had been informed about you are nothing, but you yourself also agree with observing the law.

Galatians 1:14

and was progressing in Judaism beyond many contemporaries in my nation, [because] I was a far more zealous adherent of the traditions handed down by my forefathers.

2 Thessalonians 3:6

But we command you, brothers, in the name of our Lord Jesus Christ, [that] you keep away from every brother who lives irresponsibly and not according to the tradition that they received from us.

2 Thessalonians 3:11

For we hear [that] some among you are living irresponsibly, working [at] nothing, but being busybodies.

Romans 4:12

and the father {of those who are circumcised} to those who are not only from the circumcision, but who also follow in the footsteps of the faith of our father Abraham {which he had while 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
And the scribes of the Pharisees, [when they] saw that he was eating with sinners and tax collectors, began to say to his disciples, "Why does he eat with tax collectors and sinners?"
Matthew 15:2
"Why do your disciples break the tradition of the elders? For they do not wash their hands when they eat {a meal}."
Acts 21:21
And they have been informed about you that you are teaching all the Jews [who are] among the Gentiles [the] abandonment of Moses, telling them not to circumcise [their] children or to live according to [our] customs.
Romans 4:12
and the father {of those who are circumcised} to those who are not only from the circumcision, but who also follow in the footsteps of the faith of our father Abraham {which he had while uncircumcised}.
2 Thessalonians 3:6
But we command you, brothers, in the name of our Lord Jesus Christ, [that] you keep away from every brother who lives irresponsibly and not according to the tradition that they received from us.