Matthew 12:45
Then he goes and takes with himself seven other spirits more wicked than himself; and they enter in and dwell there. And the last state of that man is worse than the first. So shall it be with this wicked generation.
John 6:66
After this, many of his disciples went back, and walked with him no more.
Romans 12:9
Let love be without hypocrisy. Abhor that which is evil; cleave to that which is good;
2 Corinthians 6:14-17
Be not unequally yoked together with unbelievers: for what fellowship has righteousness with lawlessness? What communion has light with darkness?
Hebrews 10:38-39
But the just by faith shall live; and if he draw back, my soul will have no pleasure in him.
2 Peter 2:18-22
For by speaking boastful words of folly, they allure through the lusts of the flesh, and through lasciviousness, those who had really escaped from those who live in error.
1 John 2:9
He that says he is in the light, and hates his brother, is in darkness till now.