For it is written of those who employ the pitfalls of another:

Sirach, chapter 27, verses 26-30

26)As He who digs a pit falls into it, and he who lays a snare is caught in it,

27)Whoever does harm will be involved it it, without knowing how it came upon him.

28)Mockery and abuse will be the lot of the proud, and vengeance lies in wait for them like a lion.

29)The trap seizes those who rejoice in pitfalls, and pain will consume them before they die;

30)Wrath and anger are hateful things, yet the sinner hugs them tight.