in vain.

1 Samuel 12:21
Do not turn aside after worthless things that cannot profit you or deliver you, for they are empty.

Malachi 3:14
You have said, 'It is futile to serve God. What have we gained by keeping His requirements and walking mournfully before the LORD of Hosts?

Matthew 6:7
And when you pray, do not babble on like pagans, for they think that by their many words they will be heard.

Matthew 15:9
They worship Me in vain; they teach as doctrine the precepts of men.'"

1 Corinthians 15:14, 58
And if Christ has not been raised, our preaching is worthless, and so is your faith. . . .

Titus 3:9
But avoid foolish controversies, genealogies, arguments, and quarrels about the Law, because these things are pointless and worthless.

James 1:26
If anyone considers himself religious and yet does not bridle his tongue, he deceives his heart and his religion is worthless.

James 2:20
O foolish man, do you want evidence that faith without deeds is worthless?

the commandments.

Deuteronomy 12:32
See that you do everything I command you; do not add to it or subtract from it.

Colossians 2:22
These will all perish with use, because they are based on human commands and teachings.

1 Timothy 4:1-3
Now the Spirit expressly states that in later times some will abandon the faith to follow deceitful spirits and the teachings of demons, . . .

Revelation 14:11, 12
And the smoke of their torment will rise forever and ever. Day and night there will be no rest for those who worship the beast and its image, or for anyone who receives the mark of its name." . . .

Revelation 22:18
I testify to everyone who hears the words of prophecy in this book: If anyone adds to them, God will add to him the plagues described in this book.