He did this so that all the peoples of the earth may know that the hand of the LORD is mighty, and so that you may always fear the LORD your God.”
24. That all people of the earth might know, etc He states that God had put forth that manifestation of his power that it might not only be proclaimed among his own people, but that the form of it might spread far and wide among the nations.
These stones were set up as a memorial, and children would naturally ask what they meant. Parents must teach the young to inquire into God's works and to pass down what they have learned, for it is every parent's duty to train children in the word and works of God from their earliest days.
AI summary
Commenting on Joshua 4:20-24
That all the people of the earth might know the hand of the Lord, that it is mighty,.... Even almighty, and can do that which is marvellous and surprising, and above the power of nature to effect; things unsearchable and past finding out, which cannot be expressed, or conceived how and by what means they are brought about; this the very Heathens would own and...