Meaning and Derivation: Jehovah is translated as "The Existing One" or "Lord." The chief meaning of Jehovah is derived from the Hebrew word Havah meaning "to be" or "to exist." It also suggests "to become" or specifically "to become known" - this denotes a God who reveals Himself unceasingly. Mekoddishkem derives from the Hebrew word qâdash meaning "sanctify," "holy," or "dedicate." Sanctification is the separation of an object or person to the dedication of the Holy. When the two words are combined - Jehovah Mekoddishkem - it can be translated as "The Lord who sets you apart." [From BlueLetterBible]

Speak thou also unto the children of Israel, saying, Verily my sabbaths ye shall keep: for it is a sign between me and you throughout your generations; that ye may know that I am the LORD that doth sanctify you.
Exodus 31:13

And ye shall keep my statutes, and do them: I am the LORD which sanctify you.
Leviticus 20:8

There are many things I could write about this name of God, however the Word of God does it so much better. It is the thing that I am most grateful for: sanctification aka salvation through Jesus Christ.  Some of the definitions of sanctification are : to set apart as or declare holy; consecrate - free from sin; purify. Just as the believers in the old testament were made holy through God from their animal sacrifices; we (all of mankind, past - present and future) have been made holy through God from the sacrifice of His Son, Jesus, should we chose to accept it as such

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As it is written:

This righteousness is given through faith in Jesus Christ to all who believe. There is no difference between Jew and Gentile, for all have sinned and fall short of the glory of God, and all are justified freely by his grace through the redemption that came by Christ Jesus. God presented Christ as a sacrifice of atonement, through the shedding of his blood—to be received by faith. He did this to demonstrate his righteousness, because in his forbearance he had left the sins committed beforehand unpunished—he did it to demonstrate his righteousness at the present time, so as to be just and the one who justifies those who have faith in Jesus.
Romans 3:23-26

For even the Son of Man did not come to be served, but to serve, and to give his life as a ransom for many.
Mark 10:45

Jesus told him, "I am the way, the truth, and the life. No one comes to the Father except through Me.
John 14:6

For Christ also suffered once for sins, the righteous for the unrighteous, to bring you to God. He was put to death in the body but made alive in the Spirit.
1 Peter 3:18

Therefore, since we have been justified through faith, we have peace with God through our Lord Jesus Christ, through whom we have gained access by faith into this grace in which we now stand. And we boast in the hope of the glory of God. Not only so, but we also glory in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope. And hope does not put us to shame, because God’s love has been poured out into our hearts through the Holy Spirit, who has been given to us. You see, at just the right time, when we were still powerless, Christ died for the ungodly. Very rarely will anyone die for a righteous person, though for a good person someone might possibly dare to die. But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Since we have now been justified by his blood, how much more shall we be saved from God’s wrath through him! For if, while we were God’s enemies, we were reconciled to him through the death of his Son, how much more, having been reconciled, shall we be saved through his life! Not only is this so, but we also boast in God through our Lord Jesus Christ, through whom we have now received reconciliation.
Romans 5:1-11

We give thanks to You God for salvation offered freely through Your Son, Jesus Christ, as You knew there would not be enough animals to cover the rebellion of all the generations. We give thanks to You Savior, for abiding by the will of the Father and suffering a horrific death on a cross for mankind, although You could have called down legions of angels at any time, and I would probably not be here to type this now. We give thanks to You Spirit, for leading and guiding us, for directing our path with quiet utterances or sometimes loud booms (if necessary). We rejoice in the fact that the world we see is not all that is left, that one day we (those who believe) will rejoice together, evermore living out in peace and harmony. In the name of the Perfect One, Jesus Christ.