This hymn is one that I've been singing for several years. Recently, the truth in the lyrics affected my heart all over again.
A DEBTOR TO MERCY
VERSE 1
A debtor to mercy alone
Of covenant mercy I sing
I come with Your righteousness on
My humble offering to bring
The judgments of Your holy law
With me can have nothing to do
My Savior’s obedience and blood
Hide all my transgressions
From view
VERSE 2
The work which Your goodness began
The arm of Your strength will complete
Your promise is yes and amen
And never was forfeited yet
The future or things that are now
No power below or above
Can make You Your purpose forego
Or sever my soul from Your love
VERSE 3
My name from the palms of Your hands
Eternity will not erase
Impressed on Your heart it remains
In marks of indelible grace
Yes I, to the end will endure
Until I bow down at Your throne
Forever and always secure
Forever and always secure
Forever and always secure
A debtor to mercy alone.
“A Debtor to Mercy”, Original lyrics by Augustus M. Toplady, music and alternate lyrics by Bob Kauflin. © 1998 Sovereign Grace Praise (BMI). Sovereign Grace Music, a division of Sovereign Grace Ministries.

This is one I play in the car over and over. I have to repeat it when I'm alone because after 2 times the kids start to complain. The ride to my mother's is about an hour and lately I've been playing "Jesus, Thank You". Do you sing that at church?