Matthew 15:9

In vain do they worship me, While they teach doctrines that are the commands of men."

Titus 1:14

so as to make them sound in the faith, not giving heed to Jewish myths and commandments of men who turn away from the truth.

Mark 7:7

But in vain do they worship me, For their teaching is only human precepts.'"

1 Corinthians 15:2

by which also you are saved, if you are holding fast the message which I preached to you; unless indeed you have believed in vain.

Colossians 2:18-22

Let no man at his will defraud you of your prize through his false humility and worship of the angels, taking his stand on the visions he has seen, and vainly puffed up by his material mind;

1 Timothy 1:4

nor to be paying attention to myths and interminable genealogies, which tend to promote discussions rather than a stewardship entrusted by God, a stewardship which is in faith.

1 Timothy 4:1-3

Now the Spirit distinctly declares that in latter days there will be some who will fall away from the faith, by listening to spirits of error, and to teachings of demons

1 Timothy 4:6-7

As you lay all these things before the brothers, you will be a noble minister of Christ Jesus, nourishing yourself in the precepts of the faith and that noble teaching which you have followed.

Hebrews 13:9

Do not allow yourselves to be swept away by various and strange teachings. For it is a beautiful thing to be established in heart by grace, and not by regulations regarding food, from which those that occupied themselves with them have derived no benefit.

James 2:20

But do you want to be convinced, O foolish man, that faith apart from deeds is barren?

Revelation 22:18

I testify to every man who hears the words of the prophecy of this book. If any man shall add to them, God will add to him the plagues which 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
But in vain do they worship me, For their teaching is only human precepts.'"
1 Corinthians 15:2
by which also you are saved, if you are holding fast the message which I preached to you; unless indeed you have believed in vain.
James 2:20
But do you want to be convinced, O foolish man, that faith apart from deeds is barren?

Teaching

Colossians 2:18
Let no man at his will defraud you of your prize through his false humility and worship of the angels, taking his stand on the visions he has seen, and vainly puffed up by his material mind;
1 Timothy 1:4
nor to be paying attention to myths and interminable genealogies, which tend to promote discussions rather than a stewardship entrusted by God, a stewardship which is in faith.
1 Timothy 4:1
Now the Spirit distinctly declares that in latter days there will be some who will fall away from the faith, by listening to spirits of error, and to teachings of demons
Titus 1:14
so as to make them sound in the faith, not giving heed to Jewish myths and commandments of men who turn away from the truth.
Hebrews 13:9
Do not allow yourselves to be swept away by various and strange teachings. For it is a beautiful thing to be established in heart by grace, and not by regulations regarding food, from which those that occupied themselves with them have derived no benefit.
Revelation 22:18
I testify to every man who hears the words of the prophecy of this book. If any man shall add to them, God will add to him the plagues which are written in this book;

General references

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