Isaiah 1:16
Wash and cleanse yourselves. Remove your evil deeds from My sight. Stop doing evil!

Galatians 1:8, 9
But even if we or an angel from heaven should preach a gospel contrary to the one we preached to you, let him be under a divine curse! . . .

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, . . .

Titus 1:9, 10
He must hold firmly to the trustworthy message as it was taught, so that by sound teaching he will be able to encourage others and refute those who contradict this message. . . .

2 Peter 2:1-3
Now there were also false prophets among the people, just as there will be false teachers among you. They will secretly introduce destructive heresies that even deny the Master who bought them, bringing swift destruction on themselves. . . .

James 4:8
Draw near to God, and He will draw near to you. Cleanse your hands, you sinners, and purify your hearts, you double-minded.

Jude 1:4
For certain men have crept in among you unnoticed--ungodly ones who were designated long ago for condemnation. They turn the grace of our God into a license for immorality, and they deny our only Master and Lord, Jesus Christ.