Matthew 7:16
By their fruits you will easily recognize them. Are grapes gathered from thorns or figs from brambles?
Matthew 12:33
"Either grant the tree to be wholesome and its fruit wholesome, or the tree poisonous and its fruit poisonous; for the tree is known by its fruit.
James 3:12
Can a fig-tree, my brethren, yield olives, or a vine yield figs? No; and neither can salt water yield sweet.
Matthew 7:20
So by their fruits at any rate, you will easily recognize them.
Luke 6:43-45
"There is no good tree that yields unsound fruit, nor again any unsound tree that yields good fruit.
2 Peter 2:10-18
and especially those who are abandoned to sensuality--craving, as they do, for polluted things, and scorning control. Fool-hardy and self-willed, they do not tremble when speaking evil of glorious beings;
Jude 1:10-19
Yet these men are abusive in matters of which they know nothing, and in things which, like the brutes, they understand instinctively--in all these they corrupt themselves.