Doth

Job 34:3
For the ear tests words as the mouth tastes food.

1 Corinthians 10:15
I speak to reasonable people; judge for yourselves what I say.

Philippians 1:10
so that you can discern what is best, that you may be pure and blameless for the day of Christ,

Hebrews 5:14
But solid food is for the mature, who by constant use have trained their sensibilities to distinguish good from evil.

1 Peter 2:3
now that you have tasted that the Lord is good.

mouth.

Job 6:30
Is there iniquity on my tongue? Can my mouth not discern malice?