I found this using “Uplifting Psalms Daily” for Android, iOS and Kindle Fire!
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“Walk in the light of life”:

12 I must perform my vows to you, O God; I will render thank offerings to you.
13 For you have delivered my soul from death, yes, my feet from falling, that I may walk before God in the light of life. (Psalm 56 : 12 – 13 – ESV)