I did a search. This song is sung by several artists; 5 Blind Boys, Winfield Parker and Otis Clay. Otis Clay seems to be the most popular. Here are the lyrics from allthelyrics.com.
THERE'S A DREAM THAT I DREAM
OF MY HEAVENLY HOME
AND I KNOW THAT I'M GOING THERE SOMEDAY
MAYBE MORNING, NIGHT OR NOON
I DON'T KNOW JUST HOW SOON
THAT'S WHY I'M SENDING UP MY TIMBER EVERYDAY!
THAT'S WHY I'M
bkgrd: SENDING UP MY TIMBER
SENDING UP MY TIMBER
bkgrd: SENDING UP MY TIMBER
UP TO GLORY
bkgrd: SENDING UP MY TIMBER
EVERYDAY
(the background repeats SENDING UP MY TIMBER throughout the song)
OH THERE'S A MANSION
bkgrd...
SOMEWHERE IN GLORY
bkgrd...
THAT THE LORD HAS PREPARED FOR YOU AND ME
bkgrd..
MAYBE MORNING, NIGHT OR NOON
bkgrd...
I DON'T KNOW, JUST HOW SOON
THAT'S WHY I'M SENDING UP MY TIMBER
EVERYDAY!
EVERYDAY...OH YES...EVERYDAY..UMMH EVERYDAY!
I found it on youtube