'Mouths' in the Bible

'And now, write for you this song, and teach it the sons of Israel; put it in their mouths, so that this song is to Me for a witness against the sons of Israel,

and Ehud maketh for himself a sword, and it hath two mouths (a cubit is its length), and he girdeth it under his long robe on his right thigh;

From the mouths of infants and sucklings Thou hast founded strength, Because of Thine adversaries, To still an enemy and a self-avenger.

Their fat they have closed up, Their mouths have spoken with pride:

Lo, they belch out with their mouths, Swords are in their lips, for 'Who heareth?'

And her latter end is bitter as wormwood, Sharp as a sword with mouths.

my God hath sent His messenger, and hath shut the lions' mouths, and they have not injured me: because that before Him purity hath been found in me; and also before thee, O king, injury I have not done.'