Ye shall keep
shamar (shaw-mar')
to hedge about (as with thorns), i.e. guard; generally, to protect, attend to, etc.
my sabbaths
shabbath (shab-bawth')
intermission, i.e (specifically) the Sabbath -- (+ every) sabbath.
and reverence
yare' (yaw-ray')
to fear; morally, to revere; caus. to frighten
my sanctuary
miqdash (mik-dawsh')
a consecrated thing or place, especially, a palace, sanctuary (whether of Jehovah or of idols) or asylum -- chapel, hallowed part, holy place, sanctuary.
I am the LORD
Yhovah (yeh-ho-vaw')
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.