Lyrics copied from LPDiscography.com, and corrected by me based on listening to several sound samples:

FATHER'S TABLE GRACE
Otho Jones, Homer L. Sewell
« © 1961 Unichappell Music, BMI »

As we set at the table, our family's heads bowed low,
My thoughts return to childhood and the finest man I know.
He doesn't speak good English. He's just a simple man,
But when he's talking to the Lord, even a little child can understand.
I was young and reckless, but the thought still comes to me,
When I told my dad I felt I was old enough to leave.
He set there at the table, and a look came on his face,
And he never spoke another word till he said the table grace.
He said, "Our gracious heavenly Father, we're all gathered here today
To give Thee thanks for blessings, so humble, we pray:
My oldest son is leaving. I'm sure he knows what's best,
But just in case, would You stand by and help him stand the test?
Lord, he's often neglectful about church on Sunday morn,
And if he gets with the wrong crowd, would You let him hold your arm?
And if he flies too high, would You clip his wings?
But don't let him fall too hard. I'm sure, Lord, You can handle things.
I've tried my best from day to day to teach him right from wrong,
And he's grown to be a fine young man, and he's always blessed our home.
We pray Thee, Lord, for guidance, that he won't build upon the sand,
But we won't worry half as much if we know he's in Your hands.
And oh, yes, Lord, it won't be long,
Till I'll be coming home. Don't make me wait too long.
We pray, dear Lord, for guidance. Please cleanse us from our sins
So we can all be together in Heaven. In Jesus' name, amen."
The table was silent as tears went down my face,
And from that day on, I base my life on father's table grace.

[Recorded by Lester Flatt & Earl Scruggs on "The Fabulous Sound of Lester Flatt & Earl Scruggs," Columbia CS-9055, 1964, and on several later collections; also by Lester Flatt separately. Also recorded by Skeeter Davis, Ferlin Husky, and a few others.]