O happy day that fixed my choice 
On Thee, my Savior and my God! 
Well may this glowing heart rejoice, 
And tell its raptures all abroad.

Happy day, happy day, 
When Jesus washed my sins away! 
He taught me how to watch and pray, 
And live rejoicing ev'ry day; 
Happy day, happy day, 
When Jesus washed my sins away.

'Tis done-- the great transaction's done; 
I am my Lord's, and He is mine; 
He drew me and I followed on, 
Rejoicing in the call divine. 

Happy day, happy day, 
When Jesus washed my sins away! 
He taught me how to watch and pray, 
And live rejoicing ev'ry day; 
Happy day, happy day, 
When Jesus washed my sins away.

Now rest, my long-divided heart, 
Fixed on this blissful center rest; 
Here have I found a nobler part, 
Here heav'nly pleasures fill my breast.

Happy day, happy day, 
When Jesus washed my sins away! 
He taught me how to watch and pray, 
And live rejoicing ev'ry day; 
Happy day, happy day, 
When Jesus washed my sins away.

High heav'n that hears the solemn vow, 
That vow renewed shall daily hear; 
Till in life's latest hour I bow, 
And bless in death a bond so dear. 

Happy day, happy day, 
When Jesus washed my sins away! 
He taught me how to watch and pray, 
And live rejoicing ev'ry day; 
Happy day, happy day, 
When Jesus washed my sins away.

I didn't put it together until Uganda...the tune sounded so familiar in Rwanda when the ladies were singing.... then we had a worship session with our hosts and we at least sang the chorus in English.  At a church service in Uganda the same tune came up...  I finally researched it more and found I've been singing "O Happy Day that Fixed My Choice" in three different languages in the past two months.  It's so beautiful--and another glimpse of heaven... All worshiping the same God in our native languages.  So good!