Improvisation: "Blaenhafren"

My thought process in this improvisation involves the text of the hymn "Lord, Whose Love Through Humble Service":

I "wander" through fragments of the tune before coming close to finally stating the tune in its entirety at the very end.

Text:

1 Lord, whose love through humble service
Bore the weight of human need,
Who upon the cross, forsaken,
Offered mercy's perfect deed,
We, Your servants, bring the worship
Not of voice alone, but heart,
Consecrating to Your purpose
Every gift that You impart.

2. Still Your children wander homeless;
Still the hungry cry for bread;
Still the captives long for freedom;
Still in grief we mourn our dead.
As, O Lord, Your deep compassion
Healed the sick and freed the soul,
Use the love Your Spirit kindles
Still to save and make us whole.

3. As we worship, grant us vision,
Till Your love's revealing light,
In its height and depth and greatness,
Dawns upon our quickened sight,
Making known the needs and burdens
Your compassion bids us bear,
Stirring us to tireless striving,
Your abundant life to share.

4. Called from worship to Your service,
Forth in Your dear name we go,
To the child, the youth, the aged,
Love in living deeds to show;
Hope and health, goodwill and comfort,
Counsel, aid, and peace we give,
That Your servants, Lord, in freedom
May Your mercy know and live.