Exodus 19:10

And the Lord said unto Moses, Go unto the people, and sanctify them to day and to morrow, and let them wash their clothes,

Exodus 19:10 (KJV)

Context

Israel has just been delivered from Egypt and now camps at the base of Mount Sinai. God speaks through Moses, the mediator, to prepare the congregation for a holy encounter. The people are about to receive the covenant and commandments, and God will descend visibly on the mountain.

Meaning

The Hebrew word behind “sanctify” is qadash, meaning to set apart for a holy purpose. Here God commands Moses to sanctify the people, involving both outward and inward preparation. The two-day timeframe shows that sanctification is a deliberate process, not an instant act. Washing clothes was a visible sign of the cleansing needed to approach God. This was not merely an external ritual; it was a preparation of the whole person—spiritually and physically—to meet with God.

Biblical connections

The seriousness of this preparation is seen in Exodus 19:12, where God warns that anyone touching the mountain must be put to death. This contrast highlights God’s holiness and the need for His people to be cleansed before approaching Him. The people had already promised to obey all that the Lord spoke (Exodus 19:8), and now they must act on that promise. The preparation was essential because God was about to descend on Mount Sinai in the sight of all the people (Exodus 19:11).

Application

While we do not wash clothes as a religious ritual today, the principle remains. Approaching God requires deliberate preparation of heart and life. We are to set ourselves apart, repent of sin, and seek purity. This is not about earning God’s favor but about honoring His holiness and coming with reverence. The command to sanctify was given through Moses, but we have a greater mediator, Jesus Christ, who makes us holy.

Reflection

Sanctification is both a gift and a responsibility. God calls us to be holy, and He gives us the means to prepare. As we prepare to meet Him in prayer, worship, or daily life, we can ask Him to cleanse our hearts and make us ready. The God who met Israel at Sinai still welcomes those who come to Him through faith, cleansed and set apart for His purposes.