THEN flew one of the seraphims unto me, having a live coal in his hand, which he had taken with the tongs from off the altar: And he laid it upon my mouth, and said, Lo, this hath touched thy lips; and thine iniquity is taken away, and thy sin purged.
GLORY be to the Father, and to the Son, and to the Holy Spirit.
REVEREND, all-holy Trinity, make dead the horrid passions of my wretched soul, at the prayers of thy godly Apostles, that being saved, I might glorify thee.
Both now and for ever, and to the ages of ages.
REJOICE, tongs of the divine coal, Rejoice, seal of the Prophets, and ceaseless talk of the Apostles, spotless Theotokos, through whom were were set free from corruption.
Thursdays, Plagal of the Fourth Tone. At the Liturgy. Source.