Matthew 15:9

but in vain do they worship me, teaching for doctrines the injunctions of men.

Titus 1:14

not attending to Jewish fables, and the precepts of men who turn away from the truth.

Mark 7:7

and in vain do they worship me, teaching for doctrines the injunctions of men.

1 Corinthians 15:2

By which also ye are saved, if ye retain it as I preached it to you: unless indeed ye have believed in vain.

Colossians 2:18-22

Let no one deprive you of your reward by an affected humility and worshipping of angels, intruding into what he hath not seen, vainly puffed up by his carnal mind;

1 Timothy 1:4

nor attend to fables and endless genealogies, which occasion debates, rather than pious edification in the faith:

1 Timothy 4:1-3

Now the Spirit expressly saith, that in latter times some shall apostatize from the faith, attending to seducing spirits,

1 Timothy 4:6-7

If thou lay these things before the brethren, thou wilt be a good minister of Jesus Christ, as one brought up in the words of faith and of good doctrine, to which thou hast attained.

Hebrews 13:9

be not then carried about by various and strange doctrines; for it is good that the heart be established by grace, and not in meats, in which those that have been most exact, have not profited by them.

James 2:20

But desirest thou to know, O vain man, that faith without works, is dead?

Revelation 22:18

I testify to every one that heareth the words of the prophecy of this book, If any one add to these things, God shall add unto 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
and in vain do they worship me, teaching for doctrines the injunctions of men.
1 Corinthians 15:2
By which also ye are saved, if ye retain it as I preached it to you: unless indeed ye have believed in vain.
James 2:20
But desirest thou to know, O vain man, that faith without works, is dead?

Teaching

Colossians 2:18
Let no one deprive you of your reward by an affected humility and worshipping of angels, intruding into what he hath not seen, vainly puffed up by his carnal mind;
1 Timothy 1:4
nor attend to fables and endless genealogies, which occasion debates, rather than pious edification in the faith:
1 Timothy 4:1
Now the Spirit expressly saith, that in latter times some shall apostatize from the faith, attending to seducing spirits,
Titus 1:14
not attending to Jewish fables, and the precepts of men who turn away from the truth.
Hebrews 13:9
be not then carried about by various and strange doctrines; for it is good that the heart be established by grace, and not in meats, in which those that have been most exact, have not profited by them.
Revelation 22:18
I testify to every one that heareth the words of the prophecy of this book, If any one add to these things, God shall add unto him the plagues that are written in this book:

General references

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