O God, my God, my all Thou art! Ere shines the dawn of rising day, Thy sovereign light within my heart, Thy all enlivening power display. For Thee my thirsty soul doth pant, While in this desert land I live; And hungry as I am, and faint, Thy love alone can comfort give. In a dry land, behold I place My whole desire on Thee, O Lord; And more I joy to gain Thy grace, Than all earth's treasures can afford. More dear than life itself, Thy love My heart and tongue shall still employ And to declare Thy praise will prove My peace, my glory, and my joy. In blessing Thee with grateful songs My happy life shall glide away; The praise that to Thy Name belongs Hourly with lifted hands I'll pay. Abundant sweetness, while I sing Thy love, my ravished heart o'erflows; Secure in Thee, my God and King, Of glory that no period knows.