The readings we're following for advent this year had 'Love' as the theme for the fourth Sunday of advent.  One of the hymns we sung is below.  It has such good words that I've copied them below.  If you click on the link at the end you can hear the tune if you're not familiar with it.

My song is love unknown,
  My Savior’s love to me;
Love to the loveless shown,
  That they might lovely be.
    O who am I,
    That for my sake
    My Lord should take
    Frail flesh, and die?

He came from His blest throne
  Salvation to bestow;
But men made strange, and none
  The longed-for Christ would know:
    But oh, my Friend,
    My Friend indeed,
    Who at my need
    His life did spend.

Sometimes they strew His way,
  And His sweet praises sing;
Resounding all the day
  Hosannas to their King:
    Then “Crucify!“
    Is all their breath,
    And for His death
    They thirst and cry.

They rise and needs will have
  My dear Lord made away;
A murderer they save,
  The Prince of life they slay.
    Yet cheerful He
    To suffering goes,
    That He His foes
    From thence might free.

;In life, no house, no home
  My Lord on earth might have;
In death, no friendly tomb,
  But what a stranger gave.
    What may I say?
    Heav’n was His home;
    But mine the tomb
    Wherein He lay.

Here might I stay and sing,
  No story so divine;
Never was love, dear King,
  Never was grief like Thine.
    This is my Friend,
    In whose sweet praise
    I all my days
    Could gladly spend.