All the peoples might know that the hand of the Lord is powerful

Joshua 4:15-24
Joshua set up at Gilgal the twelve stones they had taken out of the Jordan.
God did this so that all the peoples of the earth might know that the hand of the Lord is powerful and  so that you might always fear the Lord your God.
Why?
Remember the history God had done, so we can love each others.
Knowing the had of the Lord is powerful, so we may live with hope and faith.
Always fear the Lord your God, so we may obey his command and save out life.
How?
Knowing the power of God and honoring name the Lord!