tongue
"Sometimes the untamed tongue is like a poisonous snake that is loaded with venom of hate, half truths and gossip. It has the power to destroy lives. Matthew 12:34 Jesus says: "O generation of vipers, how can ye, being evil, speak good things? For out of the abundance of the heart the mouth speaketh." When the heart is filled with hatred, bitterness, anger and strife, Satan will fire up the tongue to spew it all over other people."
"The tongue is like a mirror that can reflect the heart's condition and functional state."
From"
Essentials of Chinese Medicine: Volume 1
"So the tongue is like a bridle, which can be put upon us. With a fiery horse you put a curb in his bit. The idea is to hurt him, if he pulls against the bit. So God has given to us checks upon our tongue, making it hurt us, if we speak unadvisedly. "
"Our tongue is like a thermometer; our words reveal the state of our hearts."
"Therefore the tongue is like a dagger with two blades, for the wise it is an instrument of Good and kindness, a ferry of salvation and success."
"The tongue of a butterfly is like an elephant's trunk, but very thin and wound up like a watch spring."

METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.