No labour can be wasted
When for the Kingdom it is done
Whether short or long the work
If a soul is saved and won.
The reward for the labourer
Will be paid to him that day;
The faithful servant who did his work
Will receive from God his pay.

Now, many look for great rewards
God's treasures they would hold;
But me? I shall be satisfied
With just one speck of gold.
'cause the desire of my heart
Will be Calvary's story told
My treasure is the Gospel song;
And just, one speck of gold.

Yeshua is my inheritance

Richard Merrell

http://www.poemhunter.com/poem/one-speck-of-gold/