What does it mean to sanctify oneself before God?

Sanctification involves a process of being made holy, which is crucial before entering into communion with God and experiencing His blessings. In Joshua 3:5, the Israelites were told to sanctify themselves in preparation for the wonders God was about to perform. For Christians today, this means actively pursuing holiness by repenting from sin, seeking a relationship with Christ, and allowing the Holy Spirit to transform them. Such preparation is essential for experiencing the fullness of God's grace and understanding the depth of His covenant love.