Avinu is Hebrew for "our father," as in Avraham Avinu, Abraham our father. Jesus would have begun "The Lord's Prayer" with this word. The words "Our Father which art in heaven" (Avinu sh'baShammayim), open many Hebrew prayers.
I love the old hymns and want to share them with those of like mind. There seems to be precious few music sources for the hymns that lift up the Lord Jesus Christ and that have stood the test of time.
The hymns I love the most are by Sir Isaac Watts, Fanny Crosby, and others that:
(1) have a clear message lifting up the person and/or work of The Lord Jesus,
(2) are poetic in their verse, and
(3) have great melodies with accompanying harmony and rhythm.