"Put the trumpet to your lips! Something like an eagle is over Yahweh's house, Because they have broken my covenant, And rebelled against my law.
"Set the trumpet to thy mouth ..." A glance at the American Standard Version text will reveal that these are not full sentences in the Hebrew, the translators providing certain words which seem to be implied.  If we were to leave out the supplied words, the text would read something like this: "Trumpet to mouth ... as an eagle against the house of Jehovah, etc." The meaning is clear enough.  The first staccato sentence commands that a general alarm and warning be sounded.