“A monument of grace, a sinner saved by blood..” John Kent, 1803
When I wrote earlier that I long to be a ‘monument of grace,’ I realized that such a declaration could sound prideful or be misunderstood. On the contrary, given the context of the hymn and Scriptures, a monument of grace is not an invincible statue or unattainable standard. Rather, as Paul David Tripp notes in his book Whiter than Snow: Meditations on Sin and Mercy, a monument of grace is humbly
“realizing that my story of God having rescued me by his grace is a tool that God intends to use in the lives of others….I’m not teaching the person about grace..I am sharing my experience of grace. People learn, not because I’ve opened the dictionary of grace, but because I’ve shown them the video of grace in operation. ” 
You, too, your story, your life, is a monument of grace to others. What are you showing others in your life about the riches of God’s grace? After confronted with his own sin, David was enlightened to the priceless, undeserved grace of God towards him, and said:
“Restore to me the joy of your salvation, and uphold me with a willing spirit. Then I will teach transgressors your ways.” Psalm 51:13
And in the New Testament we read,
“In Him we have redemption through His blood, the forgiveness of our trespasses, according to the riches of His grace.” Ephesians 1:7
“to me, the very least of saints, this grace was given, to preach to the Gentiles the unfathomable riches of Christ.” Ephesians 3:8
Tripp continues that I/you,
“have been called to a daily life of gospel transparency, where you’re ready, willing, and waiting to share your gratitude for the grace you’ve been given with someone who needs it just as much as you.” 
Today, humbly, gratefully, lovingly stand as a monument–a testimony–of God’s grace; once lost, now found; blind, now seeing…to those around you who need precious, amazing grace, but don’t even know it.
 Paul David Tripp, Whiter Than Snow: Meditations on Sin and Mercy. Crossway Books. IL. 2008. pg 72.