Isaiah 32:4

32:4 The mind that acts rashly will possess discernment

and the tongue that stutters will speak with ease and clarity.

Isaiah 50:4

The Servant Perseveres

50:4 The sovereign Lord has given me the capacity to be his spokesman,

so that I know how to help the weary.

He wakes me up every morning;

he makes me alert so I can listen attentively as disciples do.