Matthew 15:9
They are worshiping me for nothing [because they are] teaching principles that are [merely] the requirements of men.'"
Titus 1:14
instead of paying attention to Jewish myths and commandments of men who reject the truth.
Mark 7:7
They are worshiping me for nothing because they are teaching principles which are [merely] the requirements of men.'
1 Corinthians 15:2
[and] you have been saved by it also, if you hold on to it firmly [i.e., continue believing and practicing it]. For if you do not [hold on to it firmly], you will have believed [it] all for nothing.
Colossians 2:18-22
Do not allow anyone, who delights in acting humble [i.e., living an ascetic life] and who worships angels, to rob you of your reward [in heaven]. [Note: This "angel worship" could mean holding angels in high regard because of their role as God's messengers, or the claim that God can be approached only through angelic intermediaries]. He places great importance on what he [claims to] see [i.e., visions], being inflated with pride by his fleshly mind for no [good] reason.
1 Timothy 1:4
and not to listen to legends or exhaustive lists of ancestors. These [only] serve to arouse speculations, rather than [promote] God's plan which is based on faith.
1 Timothy 4:1-3
Now the Holy Spirit specifically says that in later times [Note: "Later times" in the New Testament usually refers to the period following the first coming of Christ and the establishment of the church], some people will fall away from the faith [i.e., the true teaching of Christianity]. They will pay attention to deceitful spirits [i.e., lying people] and the teaching of evil spirits.
1 Timothy 4:6-7
If you point out these things to the brothers you will be a good minister of Christ Jesus, and will be nurtured by the message of the faith and of the good teaching which you have been following.
Hebrews 13:9
Do not continue to be swept off your course by all kinds of strange teachings. For it is good for your hearts to be strengthened by God's unearned favor [upon you] and not by [keeping regulations about] foods, which do not benefit those who observe them.
James 2:20
But will you acknowledge, you foolish person, that faith without [good] deeds is useless?
Revelation 22:18
I testify to every person who hears the words of the prophecy of this book [Note: This is probably Jesus speaking, but could possibly be John]. If anyone adds to these words, God will add to him the calamities described in this book.