Reinhold Niebuhr wrote the original version of the serenity prayer that reads:
“O God and Heavenly Father, grant to us the serenity of mind to accept that which cannot be changed, courage to change that which can be changed, and wisdom to know the one from the other through Jesus Christ, our Lord, Amen.”
The full version goes as follows:
“God grant me the serenity
To accept the things I cannot change;
Courage to change the things I can;
And wisdom to know the difference.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
Taking, as He did, this sinful world
As it is, not as I would have it;
Trusting that He will make things right
If I surrender to His Will;
So that I may be reasonably happy in this life
And supremely happy with Him
Forever and ever in the next.
Amen”.