Fill my tongue with light, O my Savior,

and having expanded my mouth and filled it,

have pity on my heart,

that I may speak, follow, and teach

that which I first do;

for Thou didst say that he who doeth

and teacheth is great.

For if I speak only, and do not act,

I am accounted as sounding brass.

Wherefore, grant that I may speak fitting things

and do that which is profitable,

O Thou Who alone knowest the hearts of men.

Ikos from the Canon for SS. Peter and Paul