Ye left out first half of second verse

The song is called This Is the Time I Must Sing by Bill & Gloria Gaither.

Thanks!!!!

My dad passed away a week ago and he was always singing/humming this song. I wanted to have it played for his memorial.

Any ideas where I could get music for it?

I have tasted of freedom, I can go where He's leading,
For shackles can hold me no more.
I have learned of life's essence and I stand in His presence
And sing with my heart, "He is Lord."

Keep silent ye mountains, ye fields and ye fountains
For this is the song I must sing;
It's the time to sing praises to the Rock of the Ages,
And this is the time I must sing.

There are days filled with sorrow and plans for tomorrow,
But this is the time I must sing.
And I know there's a reason why in His own season
God gives me a song I can sing.

If the rocks would cry out should His praises die out,
The stones must keep silent as long.
As I've breath for the singing His praise will keep ringing,
And I will keep singing my song.
by William J & Gloria Gaither

I really need to find the name of this song and the music. It was from a gospel hymnal at an AG church. Any ideas?

Please help!