Reference

Exodus 31:13
Jehovah M'kaddesh (part 2)

JEHOVAH Mkeddesh (THE LORD WHO SANCTIFIES YOU) The Lord Who Sanctifies You, The Lord Who Makes Holy

Exodus 31:13 New International Version (NIV)

13 “Say to the Israelites, ‘You must observe my Sabbaths. This will be a sign between me and you for the generations to come, so you may know that I am the Lord, who makes you holy.

Here we see the name of God – Jehovah Mkaddesh presented. I am the Lord, who makes you holy.

Jehovah is translated as “The Existing One” or “Lord.”
Mekoddishkem derives from the Hebrew word meaning “sanctify,” “holy,” or “dedicate.”

When the two words are combined – Jehovah Mekoddishkem – it can be translated as “The Lord who sets you apart.”