“May Your unfailing love rest upon us, O LORD,
Even as we put our hope in You.”  Psalm 33:22  The NIV Bible
 
Of late, in my devotional readings, God’s love has been referred to as ‘unfailing’ love.  Unfailing is not the word used in other Bible versions that I have.  
 
Some other ‘unfailing love’ verses in the Palms are:
“Turn, O LORD, and deliver me;
Save me because of Your unfailing love.”  Psalm 6:4
 
“But I trust in Your unfailing love;
My heart rejoices in our salvation.”  Psalm 13:5
 
“Let Your face shine on Your servant;
Save me in Your unfailing love.”  Psalm 31:16
 
“Show us Your unfailing love, O LORD,
And grant us Your salvation.”  Psalm 85:7
 
“May Your unfailing love come to me, O LORD,
Your salvation according to Your promise.”  Psalm 119:41
 
Let’s look at these same verses in the New King James Version to see what words are used to describe God’s love.
 
Psalm 6:4,
“Return, O LORD, deliver me!
Oh, save me for Your mercies’ sake!  (mercies’ sake)
 
Psalm 13:5
“But I have trusted in Your mercy;
My heart shall rejoice in Your salvation.”  (mercy)
 
Psalm 31:16,
“Make Your face shine upon Your servant;
Save me for Your mercies sake.”  (mercies’ sake)
 
Psalm 85:7,
“Show us Your mercy, O LORD, 
And grant us Your salvation.”  (mercy)
 
Psalm 119:41,
“Let Your mercies come also to me, O LORD--
Your salvation according to Your word.”  (mercies)
 
Unfailing is not listed in Strong’s Exhaustive Concordance of the Bible.  The Hebrew word for mercy is CHECED in these verses and its meaning includes: kindly, kindness, merciful, mercy, pity.
 
Did you notice that each of these Scripture verses is connected with salvation.  Why did I select these verses?  I did so because these are the ones using ’unfailing love’ in the NIV.
 
And who is this LORD in the Old Testament?  He is Most Holy God.  The Father of John 3:16.
“For God so greatly loved and dearly prized the world that He [even] gave up His only begotten (unique) Son, so that whoever believes in (trusts in, clings to, relies on) Him shall not perish (come to destruction, be lost) but have eternal (everlasting) life.”  The Amplified Bible 
 
Now to those who believe, The Son, The Lord Jesus Christ, is to us,
Savior and Shepherd, Lord and God, Sovereign King and Friend who loves us in His merciful and unfailing love!  
 
With grateful hearts we give all honor and glory to You Most Holy God!  
And we sing:
“Majesty, worship His majesty
Unto Jesus be all glory, honor and praise
Majesty, kingdom authority
Flows from His throne unto His own
His anthem raise.
So exalt lift up on high the name of Jesus 
Magnify, come glorify Christ Jesus our King
Majesty, worship His majesty
Jesus who died, now glorified
King of all kings.”  
Amen