My heart is resting, O my God

My heart is resting, O my God,
  I will give thanks and sing;
My heart is at the secret source
  Of every precious thing.

Now this frail vessel Thou hast made,
  No hand but Thine shall fill;
The waters of the earth have failed,
  And I am thirsty still.

I thirst for springs of heavenly life,
  And here all day they rise;
I seek the treasure of Thy love,
  And close at hand it lies.

A glad, new song is in my mouth,
  To long-loved music set,
A song of praise for all the grace
  I have not tasted yet.

I have a heritage of joy
  That yet I must not see;
The hand that bled to make it mine
  Is keeping it for me.

There is a certainty of love
  That sets my heart at rest;
A calm assurance for today
  That to be poor is best.

A prayer reposing on His truth,
  Who hath made all things mine;
That draws my captive will to Him,
  And makes it one with Thine.