Ps 5:9 For there is no truth in their mouth;
their heart is destruction,
their throat is an open sepulchre,
they flatter with their tongue.
Ps 18:2 The LORD is my rock, and my fortress, and my deliverer,
my God, my rock, in whom I take refuge,
my shield, and the horn of my salvation, my stronghold.
Ps 57:9 (Wrong reference? This is a good parallelism but not metonymy)
I will give thanks to thee, O Lord, among the peoples;
I will sing praises to thee among the nations.
Ps 73:9 They set their mouths against the heavens,
and their tongue struts through the earth.