Matthew 6: Let not thy left hand know

Saviour, remove the vanity,
Which poisons all I do for Thee,
O make me studious to conceal
What boastful nature would reveal;
My good be to the world unknown,
Or publish'd for Thy praise alone.

A time, I know there is to' obey,
And act for God in open day:
O that I then with single eye
Thee, only Thee may glorify,
The least in my own eyes appear,
And always pray and always fear!