Joshua told the people, "Consecrate yourselves, for tomorrow the Lord will do amazing things among you." (Joshua 3:5)
Consecration means to declare or set apart as sacred. Consecration is the solemn dedication to a special purpose or service, usually religious. Consecration is the act of dedicating something to God, sanctifying it and making it holy. Different combination of words from different sources; all pointing in one direction and Joshua wanted the people he was leading in to the promised land of Canaan to be such...set apart for Almighty God. And God too was particular regarding this matter. He wanted the people whom he had chosen to be different; set apart for himself; living for him. And that is what God asks of us too; us, who have been redeemed by the precious blood of Jesus Christ.
During the journey to the promised land, God wanted the Israelites to obey Moses, their leader, so he told Moses, "I am going to come to you in a dense cloud, so that the people will hear me speaking with you and will always put their trust in you. Go to the people and consecrate them today and tomorrow. Have them wash their clothes and be ready by the third day, because on that day the I will come down on Mount Sinai in the sight of all the people."
God reminded his people time and again that they were consecrated-set apart for him and his purposes......
I am the Lord your God, who has set you apart from the nations. (Leviticus 20:24)
You are to be holy to me because I, the Lord, am holy, and I have set you apart from the nations to be my own. (Leviticus 20:26)
And we as believers in Jesus Christ....as we go about living our lives, here on earth, with its ups and downs, must acknowledge the fact that we have been set apart for God and his purposes and so, live for him and bring glory to his name always.