In the Bible, the term "Sanctifier" refers to God as the one who makes holy or sets apart for sacred use. The concept of sanctification is central to both the Old and New Testaments, signifying a process of spiritual growth and moral purity. In the Old Testament, the Hebrew term for sanctify is "qādash," which means to consecrate or make holy. For instance, in Exodus 31:13, God commands the Israelites to observe the Sabbath as a sign of His covenant, stating, "You shall keep my Sabbaths, for it is a sign between me and you throughout your generations, that you may know that I, the LORD, sanctify you."In the New Testament, this theme continues with the Holy Spirit often portrayed as the agent of sanctification. For example, in 1 Thessalonians 5:23, Paul expresses a prayer for the believers, stating, "Now may the God of peace himself sanctify you completely..." This indicates that sanctification is not merely a one-time event but a continual process involving cooperation between the believer and God. The term "Sanctifier" thus encapsulates God's role in transforming believers to reflect His holiness, empowering them to live according to His will.