Matthew 15:9

But in vain, do they worship me, teaching precepts, the commandments of men.

Titus 1:14

and not give heed to Jewish fables, and commandments of men that turn away from the truth.

Mark 7:7

In vain do they worship me, teaching precepts, the commandments of men.

1 Corinthians 15:2

by which also you are saved, if you hold fast the word which I preached to you, unless you believed in vain.

Colossians 2:18-22

Let no one gain his purpose in depriving you of the palm by an affected humility and worship of angels, prying into things which he has not seen, vainly puffed up by his fleshly mind,

1 Timothy 1:4

nor give heed to fables and endless genealogies, which produce disputes rather than godly edification, which is in faith;

1 Timothy 4:1-3

Now the Spirit says expressly, that, in the last times, some shall depart from the faith, giving heed to seducing spirits, and teachings suggested by demons,

1 Timothy 4:6-7

By recommending these things to the attention of the brethren, you will be a good minister of Jesus Christ, being nourished with the words of the faith, and of good teaching, which you have fully known.

Hebrews 13:9

Be not carried away by various and strange teachings: for it is good that the heart be strengthened with grace, not with meats, which have not profited those who were occupied with them.

James 2:20

But will you know, vain man, that faith without works is dead?

Revelation 22:18

I testify to every one that hears the words of the prophecy of this book: if any one add to these things, God will add to him the plagues that are written in this book.

Treasury of Scripture Knowledge

Summary

But in vain they do worship me, teaching for doctrines the commandments of men.

General references

Bible References

In

Mark 7:7
In vain do they worship me, teaching precepts, the commandments of men.
1 Corinthians 15:2
by which also you are saved, if you hold fast the word which I preached to you, unless you believed in vain.
James 2:20
But will you know, vain man, that faith without works is dead?

Teaching

Colossians 2:18
Let no one gain his purpose in depriving you of the palm by an affected humility and worship of angels, prying into things which he has not seen, vainly puffed up by his fleshly mind,
1 Timothy 1:4
nor give heed to fables and endless genealogies, which produce disputes rather than godly edification, which is in faith;
1 Timothy 4:1
Now the Spirit says expressly, that, in the last times, some shall depart from the faith, giving heed to seducing spirits, and teachings suggested by demons,
Titus 1:14
and not give heed to Jewish fables, and commandments of men that turn away from the truth.
Hebrews 13:9
Be not carried away by various and strange teachings: for it is good that the heart be strengthened with grace, not with meats, which have not profited those who were occupied with them.
Revelation 22:18
I testify to every one that hears the words of the prophecy of this book: if any one add to these things, God will add to him the plagues that are written in this book.

General references

1 Corinthians 15:14
And if Christ has not been raised, then vain is our preaching, and vain also your faith.