BANQUO: And oftentimes, to win us to our harm,
The instruments of darkness tell us truths,
Win us with honest trifles, to betray ’s
In deepest consequence.

William Shakespeare (1564–1616) English dramatist and poet

Macbeth, Act 1, sc. 3, l. 135ff (1.3.135-138) (1606)
    (Source)

Speaking to Macbeth of the Weïrd Sisters (witches).