Be.

1 Corinthians 6:9
Do you not know that the wicked will not inherit the kingdom of God? Do not be deceived: Neither the sexually immoral, nor idolaters, nor adulterers, nor men who submit to or perform homosexual acts,

Matthew 24:4, 11, 24
Jesus answered, "See to it that no one deceives you. . . .

Galatians 6:7
Do not be deceived: God cannot be mocked. Whatever a man sows, he will reap in return.

Ephesians 5:6
Let no one deceive you with empty words, for because of such things God's wrath comes on the sons of disobedience.

2 Thessalonians 2:10
and with every wicked deception directed against those who are perishing, because they refused the love of the truth that would have saved them.

Revelation 12:9
And the great dragon was hurled down--the ancient serpent called the devil and Satan, the deceiver of the whole world. He was hurled to the earth, and his angels with him.

Revelation 13:8-14
And all who dwell on the earth will worship the beast--all whose names have not been written from the foundation of the world in the book of life of the Lamb who was slain. . . .

evil.

1 Corinthians 5:6
Your boasting is not good. Do you not know that a little yeast leavens the whole batch of dough?

Proverbs 9:6
Leave your folly behind, and you will live; walk in the way of understanding."

Proverbs 13:20
He who walks with the wise will become wise, but the companion of fools will be destroyed.

2 Timothy 2:16-18
But avoid irreverent and empty chatter, which will only lead to more ungodliness, . . .

Hebrews 12:15
Be careful that no one falls short of the grace of God, so that no root of bitterness will spring up to cause trouble and defile many.

2 Peter 2:2, 18-20
Many will follow in their depravity, and because of them the way of truth will be defamed. . . .