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sometimes I try to tell what Jesus means to me

Sometimes I try to tell what Jesus means to me
And I find myself searching for words to say what I mean
Well I never can quite describe how good it means to me
For I know whatever I need thats just what He is

He is my Rock and my Deliverer
He is my Strength, my God and my King
He is my Shelter in times of trouble
Yes I look to Him for everything
Hell be a Mother, a Father, a Friend
And on Him I can always depend
For I know whatever I need thats just what He is

Well Im poor and needy yet the Lord thinks about me
In troubled times, well, Hes a tower and refuge you see
This world has nothing to offer me, I cling to Him
For I know whatever I need, thats just what He is

Who wrote this song, "That's Just What He Is"?
Thanks!