Search me, O God, and know my heart! Try me and know my thoughts! And see if there be any grievous way in me, and lead me in the way everlasting!

Psalm 139:23-24

Think and be careful what thou art within,
For there is sin in the desire of sin:
Think and be thankful, in a different case,
For there is grace in the desire of grace.

--John Byron, 1691-1763.