en_tn_condensed/psa/004/008.md

It is in peace that I will lie down and sleep

Peace is spoken of as if it were a place. This can be restated to remove the abstract noun "peace." Alternate translation: "I will be peaceful when I lie down and sleep" or "I will not be afraid of danger when I lie down and sleep" (See: rc://en/ta/man/jit/figs-metaphor and rc://en/ta/man/jit/figs-abstractnouns)

make me safe and secure

The words "safe" and "secure" mean basically the same thing and emphasize complete safety. Alternate translation: "make me completely safe" (See: rc://en/ta/man/jit/figs-doublet)