Jehovah Mekoddishkem is the name for the Lord who sanctifies and makes us holy. Mekoddishkem is derived from the Hebrew word “qadash” which means “holy” or “sanctify”. The anglicized version of Mekoddishkem is “M-qadash”. The Septuagint denotes this name as “the Lord who sanctifies you”. This name can literally be translated as "the Lord who sets you apart." God is referred to as Jehovah Mekoddishkem only two times in the Old Testament. The first is in Exodus 31:13. “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.'” (NIV). The other is in Leviticus 20:8. “Keep my decrees and follow them. I am the Lord, who makes you holy.” (NIV). As we draw closer to Him and live obedient lives following His Word, we are set apart and sanctified.
Sanctification is derived from the Greek word “hagios”, which means “set apart for holiness”. This word refers to the day-by-day growing process that separation to God brings. “But just as he who called you is holy, so be holy in all you do” (1 Peter 1:15, NIV). As we separate ourselves from the things that desecrate our life in Jesus Christ, we grow closer to the Lord and are in the process of being changed into His likeness—holy and set apart for His purpose.
In John 17 Jesus prays for his disciples and for believers that are to come. “They are not of the world, even as I am not of it. Sanctify them by the truth; your word is truth. As you sent me into the world, I have sent them into the world. For them I sanctify myself, that they too may be truly sanctified” (John 17:16-19, NIV). Jesus set his own life apart (sanctified himself) for the purpose for which His father sent Him. He is our example. We are called to do the same. He sends us into the world to share His gospel of redeeming love, and we must set ourselves apart (sanctify ourselves) for His purpose. To be sent in His power, we must be set apart for His purpose. We are to sanctify ourselves by the truth of His Word. The call to share His Word and the call to be separated to God are inseparable. They go hand-in-hand. We can't share the love of a holy and forgiving Lord without living it ourselves.
Paul prays in 1 Thessalonians 5:23 for us to live holy lives until the day Jesus returns. “May God himself, the God of peace, sanctify you through and through. May your whole spirit, soul and body be kept blameless at the coming of our Lord Jesus Christ”(NIV). To live a holy life until the day He comes promises a great future. “When Christ, who is your life, appears, then you also will appear with him in glory” (Colossians 3:4, NIV). “But we know that when Christ appears, we shall be like him, for we shall see him as he is” (I John 3:2b, NIV). In that moment He appears, we shall be totally separated from sin that has plagued us in this life. Completely and forever separated to Him, we will know Him as He has always known us. We will live with Him forever.