The Prince of Wales will deliver Radio 4's Thought For The Day this morning, the third time the heir to the throne has given the address.
Charles pre-recorded his message, which is a few minutes long, on Monday at his official London home Clarence House.
Thought For The Day is featured on Today, BBC Radio 4's flagship current affairs and news programme, and has a religious theme and reflects a wide range of faiths.
The heir to the throne delivered Thought For The Day in May 1995 to mark the 50th anniversary of VE Day and he gave the radio broadcast again in January 2000 at the start of the new millennium.
A BBC spokeswoman said the broadcast would be aired at around 7.48am.
She said: "He has been invited to present Thought For The Day as part of BBC Radio 4's religious programming."