President Barack Obama on Monday surprised Gene Robinson in asking him to lead the closing prayer at the White House's annual Easter Prayer Breakfast.

Robinson, the first openly gay bishop of the Episcopal Church, tweeted a photo of Obama speaking at the gathering along with the caption, “POTUS 'preaches' at the Easter prayer breakfast. Then, out of the blue, asks ME to close with prayer. OMG! #privilege.”

The opening prayer was given by Joel Hunter, the senior pastor of Northland, A Church Distributed.

The 66-year-old Robinson retired last year from the Diocese of New Hampshire after serving 9 years as bishop.

In his latest book, God Believes In Love: Straight Talk About Gay Marriage, Robinson dismantles the religious objections to marriage equality.