Why harden your hearts as the Egyptians and Pharaoh hardened theirs? When He afflicted them, did they not send the people out so they could go on their way?
The first words of the chapter tell us how long the captivity of the ark continued - it was in the country of the Philistines seven months. In the field of the Philistines (so it is in the original), from which some gather that, having tried it in all their cities, and found it a plague to the inhabitants of each, at length they sent...
Commenting on 1 Samuel 6:1-9
Wherefore then do ye harden your hearts, as the Egyptians and Pharaoh hardened their hearts?.... And would not let Israel go, when their dismission was demanded by Moses and Aaron in the name of the Lord; but was refused from time to time, being given up to judicial blindness and hardness of heart: and it seems by this, that though it was proposed by some...
Wherefore then do ye harden your hearts, as the Egyptians and Pharaoh hardened their hearts?--The memory of the appalling judgments that had been inflicted on Egypt was not yet obliterated. Whether preserved in written records, or in floating tradition, they were still fresh in the minds of men, and being extensively spread, were doubtless the means of diffusing the knowledge and fear of the true God.