His very great and precious promises.
2 Peter 1:4
Words & Music: Eugene M. Bartlett, Sr., 1929. Appeared in Crowning Hymns No. 10 (Atlanta, Georgia: Morris-Henson, 1930), number 32 (🔊 pdf nwc).
If you know where to get a better photo of Bartlett,

Swing out on the promises,
The never failing promises;
Promises of Christ the Lord divine;
Cross the line of Canaan on
His everlasting promises,
He will make your path to glory shine.
Refrain
Swing out on the promises,
The never failing promises;
Swing out on the promises,
The Savior’s precious promises;
Trust the Savior’s everlasting word;
Swing out on the promises,
The all-sufficient promises;
Swing out on the promises,
The Savior’s holy promises,
Swing out on the promises of God.
Swing out on the promises,
Jehovah’s blessèd promises;
Trusting in His pow’r to make you whole;
He will not forsake the ones
Who trust His sacred promises;
Cast on Him the burdens of your soul.
Refrain
Swing out on the promises,
The holy Master’s promises;
Give your life completely to the Lord;
He will not forsake the soul
Who trusts in His great promises;
Swing out on the promise of His word.
Refrain