chayah  (khaw-yaw')
to live, whether literally or figuratively; causatively, to revive
me after thy lovingkindness
checed  (kheh'-sed)
kindness; by implication (towards God) piety: rarely (by opposition) reproof, or (subject.) beauty
so shall I keep
shamar  (shaw-mar')
to hedge about (as with thorns), i.e. guard; generally, to protect, attend to, etc.
the testimony
`eduwth  (ay-dooth')
testimony -- testimony, witness.
of thy mouth
peh  (peh)
the mouth (as the means of blowing), whether literal or figurative (particularly speech); specifically edge, portion or side; adverbially (with preposition) according to