Under Thy wings, my God, I rest. Anna L. Waring. [Trust in God.] First pub. in her Hymns and Meditations, 1850, No. xv., in 5 stanzas of 4 lines, and based upon the words "I will trust in the covert of Thy wings," Ps. lxi. 4. In the Baptist Psalms & Hymns, 1858, it is given as, "Beneath Thy wings, O God, I rest."
John Julian, Dictionary of Hymnology (1907)