Hymn Lyrics Search - Name That Hymn

I'm trying to find out who wrote this song.

"I'll live for Him through the thick and thin,
I'll live for Him when my eyes grow dim.
I'll live for Him on the mountaintop or the valley below.
I'll live for Him when when the road is rough
I'll live for Him when the work gets tough
I'll never give out, I'll never give in and I'll never let go."

I need the name of the author. Thanks in advance for your help!

It was written by Pastor Michael Martin of Faith Baptist Church in San Antonio Tx.