I would venture to guess, that most of you have never heard this lovely hymn as it was intended by Civilla Martin in 1905.  Today, it is often presented as a soft-rock ballad.  I hope this authentic  rendering by a Mennonite choir will minister to your spirit. 

“HIS EYE IS ON THE SPARROW”

1. Why should I feel discouraged, why should the shadows come,
   Why should my heart be lonely, and long for heav’n and home,
   When Jesus is my portion? My constant Friend is He:
   His eye is on the sparrow, and I know He watches me;
   His eye is on the sparrow, and I know He watches me.“Let not your heart be troubled,” His tender word I hear,
   • Refrain:
     I sing because I’m happy, I sing because I’m free,
     For His eye is on the sparrow, and I know He watches me.
2. And resting on His goodness, I lose my doubts and fears;
   Though by the path He leadeth, but one step I may see;
   His eye is on the sparrow, and I know He watches me;
   His eye is on the sparrow, and I know He watches me.
3. Whenever I am tempted, whenever clouds arise,
   When songs give place to sighing, when hope within me dies,
   I draw the closer to Him, from care He sets me free;
   His eye is on the sparrow, and I know He watches me;
   His eye is on the sparrow, and I know He watches me.

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Civilla Martin, who wrote the lyrics, said this about her inspiration to write the song based in the scriptures outlined above,

Early in the spring of 1905, my husband and I were sojourning in Elmira, New York. We contracted a deep friendship for a couple by the name of Mr. and Mrs. Doolittle—true saints of God. Mrs. Doolittle had been bedridden for nigh twenty years. Her husband was an incurable cripple who had to propel himself to and from his business in a wheel chair. Despite their afflictions, they lived happy Christian lives, bringing inspiration and comfort to all who knew them. One day while we were visiting with the Doolittles, my husband commented on their bright hopefulness and asked them for the secret of it. Mrs. Doolittle’s reply was simple: “His eye is on the sparrow, and I know He watches me.” The beauty of this simple expression of boundless faith gripped the hearts and fired the imagination of Dr. Martin and me. The hymn “His Eye Is on the Sparrow” was the outcome of that experience. [wikipidea.org]

4 Rejoice in the Lord alway: and again I say, Rejoice. 5 Let your moderation be known unto all men. The Lord is at hand. 6 Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. 7 And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus. Philippians 4: 4-7